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Biology

Within Science

Brown spotted lizard on a tree trunk. Caption: He plans to radio track the lizards.

Green lizard on a rock. Spanish captions.

Close up of head and shoulders of a manatee swimming under water. Caption: USGS

Slide shows a blue background with pairs of animals facing in opposite directions includes moose, cows, tigers, and camels. Text in foreground reads, "Mammals."

A bird floats underwater while a school of small fish swirl around it. A marlin approaches from below. Caption: and the frenzy intensifies as marlin compete

Group of children with arms raised. Spanish captions.

Man wearing a lab coat with a stethoscope around his neck talks to us. Next to him is a green unsure face that sneezes out multiple droplets that are full of germs.

People in an open-air enclosure standing around a table with paper and other objects on the surface. Caption: is that I am surrounded by really curious people,

People in an open-air enclosure standing around a table with paper and other objects on the surface. Spanish captions.

Complex matrix of spherical objects next to a thermometer reading slightly above zero degrees. Caption: A low temperature indicates that the particles

Field of corn at night with a person using large machinery to spray the crop. Caption: You can spray with herbicide and your crop will survive

Flat landscape with corn as far as the eye can see. Caption: For example, the American corn field is such a huge landscape

Hands adjusting a microscope. Spanish captions.

Closeup of microscopic green and blue organisms superimposed with a title card that reads, "Microscopic monsters."

Magnified view of a very small animal with a segmented body and many legs. Caption: Only in a waterfall are there such creatures.

Magnified view of thin, tangled threads. Caption: a fungus composed of a tangled mass of threads

Closeup of a worm in soil. Caption: They really do a bang-up job of cultivating the soil.

Closeup of a bee on a yellow flower. Caption: (Tara) Fertilization with an insect's help--

Cross section of earth. Different layers of rock and soil have a jagged crack running down them. Caption: a complex and very ancient assemblage

closeup of beige and brown insects in wood. Caption: They'll soon reduce this log to frass.

Microscopic view of roughly oval shaped organisms surrounded by much smaller green spherical objects. Caption: I want to look closer at how they feed.

A black, waist high horse wearing a bridle and halter is being held by a person standing next to it. Caption: the miniature horse has become a popular pet

Illustration of tubular structures. Nova science Now. Caption: The answer -- mirror neurons,

Alex Dainis is seated in front of her book shelf. Animation of a cell structure. Caption: And this volume includes all of its organelles.

Close up of a snail. Caption: The snail moves very smoothly, almost as if it were sliding.

Still image from: More About Water

Close up of a very large brown moth with a large spot on each of its four wings and dark dots on the tip of two of them. Caption: And that led into studying bat-moth interactions,

Three infrared images of a man, two running and one floating in the middle against a blue background. Text reads, "Muscles."

Illustration of two people in a basket passing by tree roots. Caption: You're just passing through the root level.

Illustration of drops of water with faces. Caption: Look at this, Hanna.

Illustration of a spider. Caption: We breathe in oxygen and breathe out carbon dioxide.

Illustration of a dog scratching itself. Caption: Look! Everyone's scratching themselves.

Cow with a metal hat connected to wires that lead to a large machine. Caption: Thanks to my work, she can produce chocolate milk.

Illustration of three insects sitting on a ceiling beam, looking down on a fourth insect who is talking to two children in bed. Caption: (Suzie) Do you know the story of the princess dragonfly?

Illustration of two people floating on a platform and moving towards a waterfall. Caption: (Hanna) They disappeared into the waterfall.

Illustration of a person reaching to take something from a tree's hand. Caption: Take them and find a pretty spot to plant them.

Cartoon of a person pulling a plant out of the ground. Caption: Hey, be careful! Don't take it all.

Plastic 3D color-coded model of the human brain. Caption: The brain's maximum potential?

Still image from: My Pet and Me: Teeny Tiny Creatures--Ants

Still image from: My Pet and Me: Teeny Tiny Creatures--Bats

Still image from: My Pet and Me: Teeny Tiny Creatures--Beetles

Still image from: My Pet and Me: Teeny Tiny Creatures--Bumble Bees

Still image from: My Pet and Me: Teeny Tiny Creatures--Butterflies

Still image from: My Pet and Me: Teeny Tiny Creatures--Caterpillars

Still image from: My Pet and Me: Teeny Tiny Creatures--Crabs

Still image from: My Pet and Me: Teeny Tiny Creatures--Dragonflies

Still image from: My Pet and Me: Teeny Tiny Creatures--Earthworms

Still image from: My Pet and Me: Teeny Tiny Creatures--Frogs

Still image from: My Pet and Me: Teeny Tiny Creatures--Grasshoppers

Still image from: My Pet and Me: Teeny Tiny Creatures--Hedgehogs

Still image from: My Pet and Me: Teeny Tiny Creatures--Honeybees

Still image from: My Pet and Me: Teeny Tiny Creatures--Ladybirds

Still image from: My Pet and Me: Teeny Tiny Creatures--Lizards

Still image from: My Pet and Me: Teeny Tiny Creatures--Mice

Still image from: My Pet and Me: Teeny Tiny Creatures--Millipedes

Still image from: My Pet and Me: Teeny Tiny Creatures--Moths

Still image from: My Pet and Me: Teeny Tiny Creatures--Newts

Still image from: My Pet and Me: Teeny Tiny Creatures--Robins

Still image from: My Pet and Me: Teeny Tiny Creatures--Seahorses

Still image from: My Pet and Me: Teeny Tiny Creatures--Snails

Still image from: My Pet and Me: Teeny Tiny Creatures--Spiders

Still image from: My Pet and Me: Teeny Tiny Creatures--Starfish

Still image from: My Pet and Me: Teeny Tiny Creatures--Woodlice

Complex diagram indicating the relationship of different species of organisms. Caption: and are separated on the theropod family tree.

Man wearing glasses and a white lab coat speaks while looking at a machine, as Danni Washington watches him with curiosity.

Danni Washington stands at a desk in a science lab with a man and a woman who are using mycelium and kombucha, held in beakers and glass containers, to demonstrate the growth of fungi and bacteria.

Close-up of light-colored soft coral, slightly resembling a head of cauliflower, under deep blue sea.

Danni Washington looks at us, standing in front of a green field, as the show's animated title emerges onto the screen.

Person wearing a backpack and a headlamp moving through a narrow opening in a crouched position. Caption: Okay, I'm going down a slope. It looks a little slippery.

A river flows through a large forest area. Caption: Amazon Rainforest. Latitude, 4 degrees North to 13 degrees South. Longitude, 45 degrees to 77 degrees West. Rainfall, 2500 to 4000 millimeters. Temperature range, 20 degrees to 32 degrees Celsius.

A small hill is present in a large plain.

A coastal region with fog rising from the sea. Caption: Galapagos Ecuador. Latitude, 1 degree 40 minutes North. Longitude, 89 degrees 16 minutes to 92 degrees 01 minutes West. Air Temperature, 20 to 32 degrees Celsius.

Ants climbing on the shoots of grass.

A butterfly with its wing spread out and sitting on a flower.

A locust chews on a shoot of grass.

A coastal region of South West Africa. Caption: Africa Namib Desert. Latitude, 19 degrees 23 minutes South. Longitude, 12 degrees 53 minutes East. Midday Dune Temperature, 50 degrees Celsius. Average Rainfall, 2 to 85 millimeters.

An area on the map of Africa is highlighted, with a group of deer running in the background. Caption: Okavango Botswana. Latitude, 19 degrees to 20 degrees. Longitude, 22 degrees to 23 degrees East. Average rainfall, 450 millimeters. Temperature range, 21 degrees to 38 degrees Celsius.

An area on the map of Scotland is highlighted, and a mountain range with snow covered peaks are depicted in the background. Caption: Scottish Highlands. Latitude, 57 degrees North. Longitude, 4 degrees West. Average rainfall, 3000 millimeters. Temperature range, minus 2 degrees Celsius.

A hilly forest region of East Africa. Caption: Serengeti Tanzania. Latitude, 2 degrees 43 minutes South. Longitude, 34 degrees 85 minutes East. Average Rainfall, 700 millimeters. Temperature range, 15 to 28 degrees Celsius.

An ice covered region. Caption: Svalbard Norway. Latitude, 74 degrees to 81 degrees North. Longitude, 10 degrees to 35 degrees East. Average W I.

A photo depicts a region with a large number of trees and small water pockets. Fog rises from the earth.

3D rendering of a neuron, resembling a ball of plant roots or a rhizome. Text reads, "Brain Basics."

Black-and-white illustration of a side-view X-ray of a human's head. The brain is composed of pink, green, and purple fiber-like masses forming separate structures. Text reads, "Mapping the Brain."

Digital illustration of five stages of a brain's growth, from a small, smooth lump into a bigger shaped organ with bulges, grooves, and fissures. Text reads, "The Developing Brain."

Three jellyfish of various sizes with ribbon-like and long, straight tentacles. Caption: Well, it appears one creature is a step ahead of us.

Closeup of a mosquito with proboscis piercing human skin. Caption: When a mosquito infects a person with dengue virus,

Slide shows white text on a green chalkboard against a brick wall that reads, "Turning Food into Energy."

Slide shows light and royal blue text on a navy background that reads, "Ocean Animals for Kids."

3 people with hats, backpacks, and cameras and several horses, some with riders, hike up a dirt trail on a mountain amongst various flora in the fall. Caption. The mountains of Baja.

Closeup of terraced moss on a hillside with water dripping from it. Caption: early land plants most likely lived in moist environments.

Still image from: Origin of Everything: Why Does the Heart Emoji Look That Way?

Still image from: Overview: Are Roller Coasters Good for Your Brain?

Rural landscape with a red barn on a hill, in front of a vast forest of trees with bright fall colors, before a sloping mountain background. Scene begins to transition to a small town landscape embedded into an autumnal mountain valley.

The periodic table of elements. A grid with letters representing each element. Spanish captions.

Illustration of a stalk of corn showing roots below ground and foliage above ground. Sun Light, CO2, and Sugar are above ground and Water is below ground. Caption: What vital gas is also given off in photosynthesis?

A microscopic view of a leaf. The cells inside the cell membrane are labeled as Mesophyll cells. The cells lining the lower part of the leaf are labeled, Epidermal cells. Another bundle of cells islabeled, Vascular bundle. Caption: A leaf has many different types of cells.

Photosynthesis, it's a crazy, complicated process.

Double helix and chemical symbols on a lime green background surround text that reads, "Photosynthesis."

Complex diagram showing ADP and Potassium on one side of a cell wall and ATP synthase moving through the cell wall to the other side. Caption: The enzyme uses energy from the backflow of hydrogen ions

A diagram depicts the musculature of lower back. Caption: Gluteus Maximus,

Illustration of a human arm flexing and the bicep muscle enlarged. Caption: to control the extent of the contraction,

Animal on the ocean floor with branch like tangled limbs. Caption: All these zooplankton are food for larger animals in the ocean.

Stalk of grain bent from the weight of the grain, yellow flowers in background. Spanish captions.

Girl wearing glasses dances with her arms out in a field of trees. Text reads, "Plant Parts."

Ripe blueberries on the bush. Spanish captions.

Underwater view of seaweed. Spanish captions.

Large pink poppies in bloom. Spanish captions.

Man and woman walking with arms around each other's waist. Caption: humans are truly a privileged species,

Person looking at a slide in a microscope. Caption: And this is a biochemistry lab.

Person in a lab coat and gloves putting on protective glasses. Caption: For Rommie, being a chemist was just the beginning.

Closeup view of two brown spherical objects with a haze of green substance surrounding them. Caption: Often called fire algae, some types of dinoflagellates

Protists, single celled organisms.

Four jets trailing colored exhaust engaging in trick maneuvers. Caption: (narrator) A g-force is the force gravity has on your body.

Close up of the face of a person who has dark skin, brown eyes, and a wide nose. Caption: or their genes moved from place to place,

Still image from: Ranger Hamza's Eco Quest: Acorns

Still image from: Ranger Hamza's Eco Quest: Caddisflies

Still image from: Ranger Hamza's Eco Quest: City Parks

Still image from: Ranger Hamza's Eco Quest: Dandelions

Still image from: Ranger Hamza's Eco Quest: Dead Wood

Still image from: Ranger Hamza's Eco Quest: Grasses

Still image from: Ranger Hamza's Eco Quest: Hedges

Still image from: Ranger Hamza's Eco Quest: Lichen

Still image from: Ranger Hamza's Eco Quest: Puddles

Still image from: Ranger Hamza's Eco Quest: Seaweed

Still image from: Ranger Hamza's Eco Quest: Seeds

Still image from: Ranger Hamza's Eco Quest: Tides

Still image from: Ranger Hamza's Eco Quest: Water Lilies

Still image from: Ranger Hamza's Eco Quest: Woodpecker

Angular aircraft with multiple flaps on each wing sitting on a concrete deck, viewed from below. Caption: (observer) The aircraft's controlled by many movable surfaces,

Closeup of a tick on a leaf. Lyme Disease. Caption: Ticks are carriers of Lyme disease.

Blue tropical fish eating something from a rock covered in plants. Caption: Consumers cannot produce their own food.

Slide shows a white banner of green text on a scaly green background that reads, "Reptiles."

Illustration of the upper respiratory system. A tube extending from the top of the throat down into the chest is labeled as the trachea. Caption: The trachea is about 12 centimeters long

Beakers and test tubes with colored liquid. Caption: Some chemicals irritate and damage

Flag with an image of bigfoot on a pole next to a powerline. Caption: The discovery of Bigfoot would cause us to have to say,

Illustration depicts glycerol in zig zag fatty acid chains.Caption: of three fatty acid chains stuck onto a glycerol molecule.

Ear of yellow corn combined with an ear of green corn produces an ear of yellow corn. Spanish captions.

Rows of plants being grown in a greenhouse. Spanish captions.

Illustration of an eye, hand, and mouth. Spanish captions.

Dark and light grey structures against a white background. Spanish captions.

Person in scrubs handling medical equipment. Spanish captions.

Computer model of spiral ribbon structures with hollow, hexagonal tubular structures. Caption: (male narrator) What's the best was to know a protein?

Bat held down by cardboard restraint, pinning wings to body. Caption: how these highly-specialized creatures navigate their world.

Woman in front of a computer screen in a dimly lit space. Caption: about impacts of night shift work on a woman's body clock.

A gray eel. National Aquarium. Caption: an electric eel can generate enough current to stun its prey.

Black butterflies with orange and white wings on a bright orange flower. Caption: (narrator) The colors signal to birds, "Don't eat me, I'm toxic."

Computer screen displaying two uneven strands of light. Caption: that thrives where life would seem impossible.

Two people moving a flat of plants. Caption: are reimagining the future of farming --

Person picking up wood chips and putting them into a plastic bag. Caption: (Huber) Cellulose is basically stored solar energy

Oysters in the water. Caption: is to restore the oyster ecosystem.

Map of the world with central and southern Africa highlighted. Arrows indicate movement from there to all areas of the globe. Caption: after the first homo sapiens left Africa 100,00 years ago.

Alligator in grass. Caption: for a population and genetics survey of alligators.

Cross section of the human brain. Caption: creating a virtual 3-D image of the brain.

Clear vial with a glowing pink liquid. Caption: may one day make treating cancer easier

Small turtle held in a person's hands. Caption: studies sea turtles that are programmed from birth

Closeup of a green, circular plant with a white center. Caption: have the ability to make diesel-like fuels.

Large spider with variegated legs crawling on a person's fingertip. Caption: The silk is from golden orb weaver spiders.

Person standing in front of a desk with a variety of objects. Caption: Classification is really just the arranging and categorizing

Black salamander with yellow spots crawling on the ground. Caption: to survive in a specific habitat is a structural adaptation.

A bird standing on a rock between two cacti. Spanish captions.

Hummingbird hovering in the air. Caption: And they get this energy by eating and digesting food.

View of cells under a microscope. Spanish captions.

Field of grain like plants. Caption: such as ethanol and propanol.

A container of BioFuel. Spanish captions.

A large brown bird perched on a dead branch. Caption: Some birds are carnivores too.

A female lion on a brown, grassy plain. Spanish captions.

Graphic of light and dark blue spheres of various sizes. Caption: The food molecules fuel cellular respiration.

A duck, flamingo, and cardinal. Class is Aves. Caption: All birds are part of class Aves.

Several primates with black and white fur. Spanish captions.

Large turtle swimming on the ocean floor. Caption: Every living thing gets energy from food.

A hummingbird hovering near a feeder. Spanish captions.

Closeup of a cluster of mushrooms. Fungi decomposer. Caption: Fungi are another type of decomposer.

Closeup of a cluster of mushrooms. Fungi decomposer. Spanish captions.

People walking down a snowy street. Caption: The planet earth has many different kinds of environments.

Gorilla, chimpanzee, humans. Family is Hominid.

Zebra and horse. Spanish captions.

Herd of cows grazing in a green pasture. Caption: All living things need energy to grow, change and move.

Illustration of a plant with a cross section showing the root system. A sun is in the sky above. Spanish captions.

Industrial plant with smokestacks emitting pollutants. Caption: Increased greenhouse gases in the atmosphere.

Closeup of a plant growing up through a patch of melting snow. Spanish captions.

Flock of sheep grazing in a pasture. Caption: Grazers are animals that eat grasses and small plants.

Closeup of the nose and open mouth of a cow. Spanish captions.

Computerized image of a skull. Caption: The axial skeleton consists of the skull,

Giraffes in natural habitat. Caption: Imprinted behaviors are fairly permanent,

Adult goose with ducklings feeding from the grass. Spanish captions.

Adult dog with a puppy. Caption: Innate means you we're born with them.

Peacock with tail feathers fanned out. Spanish captions.

Herd of elephants in natural habitat. Caption: Animals are living things.

Lilies. Spanish captions.

Butterfly lays the egg, egg hatches to larva, larva changes into a pupa, pupa turns into a butterfly. Caption: They are egg, larva, pupa, and adult.

Butterfly lays the egg, egg hatches to larva, larva changes into a pupa, pupa turns into a butterfly. Spanish captions.

Yellow and black butterflies on the ground. Spanish captions.

Diagram showing a lung structure with no mucus reaching into tissue below and the same lung structure covered in mucus unable to do the same thing. Caption: The mucus clogs the lungs and causes infections.

Negative feedback loop. Control center (brain), effector, response, feedback, stimuli, receptor, back to control center. Caption: The control center determines the appropriate response.

Formations of red rock in desert scrub brush. Caption: Rocks are non-living things.

Red rock topped with green scrub and a rainbow in the sky. Spanish captions.

Cluster of molecules. Spanish captions.

Microscopic view of bell-shaped organisms on a fine stalk. Caption: All protists share common characteristics.

Microscopic view of oval shaped organisms. Spanish captions.

View of Earth from space. Caption: They tell us how nature does behave.