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Showing 1-60 of 213 Resources
  • Living Rocks

    Living Rocks

    Image of the Week

    A nursery of microbialites emerging from a microbial mat along the edge of a thermal stream flowing from a hot spring in Yellowstone National Park

  • Film Guide for How Tube Worms Survive at Hydrothermal Vents

    Film Guide for How Tube Worms Survive at Hydrothermal Vents

    Film Guide

    The following classroom-ready resources complement the film How Tube Worms Survive in Hydrothermal Vents. It tells the story of the symbiotic relationship between the giant tube worm, Riftia pachyptila, and chemosynthetic bacteria.

  • Model Microbiome

    Model Microbiome

    Image of the Week

    A section of the colon of a germ-free mouse colonized with fifteen different species of bacteria characteristic of the human gut.

  • Think Like a Scientist: Gorongosa

    Think Like a Scientist: Gorongosa

    Scientists at Work

    This short video tells the story of how a large-scale project to restore the wildlife of Gorongosa National Park began and describes the project’s approach of combining traditional conservation biology methods with solutions for addressing challenges in the community.

  • Sharing Germs

    Sharing Germs

    Image of the Week

    Young green iguanas feed on the droppings of their elders in order to collect bacteria that enable them to digest plants.

  • Niche Partitioning and DNA Metabarcoding

    Niche Partitioning and DNA Metabarcoding

    Click & Learn

    This interactive explores niche partitioning as a mechanism that enables similar species of animals to coexist.

  • Walk On

    Walk On

    Image of the Week

    One of the last wolf pups born on Isle Royale National Park in 2009.

  • Seed Dispersal in Tropical Forests

    Seed Dispersal in Tropical Forests

    Activity

    In this activity, students use data from published studies to understand patterns of seed dispersal and apply these ideas to the design of a conservation area.

  • How Giant Tube Worms Survive at Hydrothermal Vents

    How Giant Tube Worms Survive at Hydrothermal Vents

    Feature Film

    (10 min 20 sec) Deep at the bottom of the Pacific Ocean, an amazing bacterial discovery reshaped our view of life on earth.

  • Fountains of Life

    Fountains of Life

    Image of the Week

    Densely packed endosymbiotic bacteria (Endoriftia persephone) in the trophosome of a tube worm living in a deep-sea hydrothermal vent.

  • Modeling Food Webs in Darién, Panama

    Modeling Food Webs in Darién, Panama

    Activity

    Students use cards to build model food webs and evaluate how ecological disturbances affect each trophic level. Also available in Spanish.

  • Snow Seeds

    Snow Seeds

    Image of the Week

    Snowflakes are generated when ice builds up on either dust particles or microorganisms in the atmosphere.

  • The Secret Life of Beewolves

    The Secret Life of Beewolves

    Image of the Week

    Cross-section through the antenna of a female beewolf, Philanthinus quattuordecimpunctatus.

  • Vertebrate Declines and the Sixth Mass Extinction

    Vertebrate Declines and the Sixth Mass Extinction

    Data Point

    In this study, researchers measured species population declines on a global scale that may contribute to the sixth mass extinction.

  • BiomeViewer

    BiomeViewer

    Click & Learn

    An interactive to explore biomes, climate, biodiversity, and human impacts across the globe.

  • Eating Wood

    Eating Wood

    Image of the Week

    A soldier Dampwood termite (Zootermopsis nevadensis) in a nest gallery.

  • EarthViewer

    EarthViewer

    Click & Learn

    Download the accompanying student worksheet under "Downloads." What did Earth look like 250 million years ago? Or 1 billion years ago? Or 4.5 billion years ago? EarthViewer is an interactive tool that allows you to explore the science of Earth's deep history.

  • With A Little Help From My Microbiome

    With A Little Help From My Microbiome

    Image of the Week

    Koalas are able to spend most of their lives in the relative safety of eucalypt trees by virtue of a digestive system adapted to eating their leaves.

  • Fellow Travelers

    Fellow Travelers

    Image of the Week

    The human body is home to some thirty-nine trillion microbes that live in or on it.

  • Predator-Prey Relationship Dynamics

    Predator-Prey Relationship Dynamics

    Data Point

    In a study in Greenland, scientists examined whether changes in population densities of Arctic fox are related to changes in population densities of its main prey, the lemming.

  • Visualizing New Worlds

    Visualizing New Worlds

    Image of the Week

    Frederic Edwin Church’s oil painting, “The Heart of the Andes” caused quite a stir when it was unveiled in New York on April, 27, 1859

  • Tracking Genetically Modified Mosquitoes

    Tracking Genetically Modified Mosquitoes

    Activity

    Genetically modified mosquitoes have been used to reduce mosquito populations and the diseases they spread. But how can we tell if the method works? In this activity, students analyze data from a field experiment.

  • Microbial Community Response to an Oil Spill

    Microbial Community Response to an Oil Spill

    Data Point

    Researchers monitored the succession of the microbial community in the Gulf of Mexico using data from before, during, and after the Deepwater Horizon oil spill.

  • Population Dynamics

    Population Dynamics

    Click & Learn

    Explore the exponential and the logistic growth mathematical models that describe how population changes with time.

  • Portrait of a Howler

    Portrait of a Howler

    Image of the Week

    Groups of black howler monkeys (Alouatta caraya) “howl” to each other in the Amazon rainforest during the evening and early morning hours in order to maintain neighborly distances.

  • Benefits of Schools

    Benefits of Schools

    Image of the Week

    Being in a school affords young barracuda several advantages over the solitary life.

  • Firefly Pyrotechnics

    Firefly Pyrotechnics

    Image of the Week

    Most firefly species employ characteristic patterns of bioluminescent flashes to elicit responses from potential mates.

  • Asteroid Impact?

    Asteroid Impact?

    Image of the Week

    A living foraminifer, Orbulina universa, in the act of shortening its spines in preparation for gametogenesis.

  • Seed Dispersal and Habitat Fragmentation

    Seed Dispersal and Habitat Fragmentation

    Scientists at Work

    (8 min 3 sec) Watch researchers follow brown spider monkeys in a tropical forest of Colombia to determine which plant seeds they are dispersing. Seed dispersers are critical to the forest’s ability to grow and regenerate. 

  • WildCam Darién

    WildCam Darién

    Click & Learn

    Researchers in Darién and Soberanía National Parks use remote trail cameras to study jaguars and their prey. You can contribute to this important research through WildCam Darién, an online citizen science platform.

  • Counting the Rings

    Counting the Rings

    Image of the Week

    An otolith from a lanternfish (Gymnoscopelus nicholsi) is used to estimate the fish’s age and growth rate.

  • Dragon Tale

    Dragon Tale

    Image of the Week

    A pangolin rescued from poachers near Gorongosa National Park, Mozambique.

  • Modeling Trophic Cascades

    Modeling Trophic Cascades

    Activity

    Students use cards of animal and plant species to model trophic cascades. Species examples are drawn from seven different habitats to test student understanding.

  • Single Mother

    Single Mother

    Image of the Week

    A queen bee may produce as many as 60,000 offspring during her lifetime.

  • Trophic Cascades in Salt Marsh Ecosystems

    Trophic Cascades in Salt Marsh Ecosystems

    Scientists at Work

    (10 min 1 sec) Ecologist Brian Silliman uses manipulative field experiments to reveal that salt marsh ecosystems are under top down control from consumers and predators.

  • Larval Biscuit

    Larval Biscuit

    Image of the Week

    A pluteus larva of the sea biscuit, Clypeaster subdepressus, an echinoderm closely related to sea urchins.

  • Riverine Food Webs – How Flow Rates Affect Biomass

    Riverine Food Webs – How Flow Rates Affect Biomass

    Scientists at Work

    (9 min 15 sec) Ecologist Mary Power studies the Eel River in Northern California to figure out the connection between river flows and biodiversity.

  • Super Stoma

    Super Stoma

    Image of the Week

    The stomata of grasses (singular stoma) function more efficiently than those of other plants.

  • Ecology, Food Webs, and the Chesapeake Bay

    Ecology, Food Webs, and the Chesapeake Bay

    Lecture

    (49 min 3 sec) A discussion of the Chesapeake Bay Watershed, its complex food web, and the challenges of conserving and restoring the bay.

  • Snail Fronts and Salt Marsh Die-Offs

    Snail Fronts and Salt Marsh Die-Offs

    Data Point

    Researchers studied whether periwinkle snail fronts expand mudflats and contribute to salt marsh die-offs.

  • Lionfish Invasion

    Lionfish Invasion

    Image of the Week

    Two species of lionfish, the red lionfish (Pterois volitans) and the common lionfish (Pterois miles), have been established as invasive species off the East Coast of the United States and in the Caribbean.

  • Tracking Global Changes in Forest Cover

    Tracking Global Changes in Forest Cover

    Data Point

    Researchers used satellite imagery analyze the amount of forest that was lost annually across the globe between 2000 and 2012.

  • Under the Hemiparasite

    Under the Hemiparasite

    Image of the Week

    Many of the 1400 or so species of mistletoes are hemiparasites—they obtain at least part of their nutrition from the host tree.

  • Sharklab

    Sharklab

    Image of the Week

    A team of scientists from The Bimini Biological Field Station collecting samples from a male tiger shark (Galeocerdo cuvier).

  • Middle School

    Middle School

    Collection

    A small selection of our multimedia resources that will enhance your teaching of middle school life and earth science classes. They include engaging, high-quality animation, hands-on activities,...

  • Relish the Cranberry

    Relish the Cranberry

    Image of the Week

    Most of the cranberries used for Thanksgiving dinner are “wet harvested” by flooding cranberry marshes.

  • Climate Stress and Coastal Food Webs

    Climate Stress and Coastal Food Webs

    Lecture

    (43 min 18 sec) We are in the midst of a major die-off of coastal wetlands – what is to blame?

  • Floods, Droughts, and Food Chains

    Floods, Droughts, and Food Chains

    Lecture

    (44 min 27 sec) How a river's community of herbivores and predators is affected by changes in river flow.

  • Untangling Salt Marsh Food Webs

    Untangling Salt Marsh Food Webs

    Lecture

    (45 min 16 sec) The revelation that salt marshes are controlled by top-down forces of herbivores and other consumers.

  • Trophic Cascades in Rivers

    Trophic Cascades in Rivers

    Lecture

    (44 min 27 sec) How fishes in a river ecosystem play a critical role in forming the aquascape.

  • The Effects of Fungicides on Bumble Bee Colonies

    The Effects of Fungicides on Bumble Bee Colonies

    Scientists at Work

    (6 min 25 sec) Are fungicides safe for bumble bees? Entomologist Shawn Steffan designed an experiment to answer this question.

  • Tagging Bumble Bees to Study Their Movements

    Tagging Bumble Bees to Study Their Movements

    Scientists at Work

    (6 min 1 sec) Graduate student Jeremy Hemberger designs an experiment to study the foraging behavior of bumble bees in different habitats.

  • Ecology of Rivers and Coasts—Food Webs and Human Impacts

    Ecology of Rivers and Coasts—Food Webs and Human Impacts

    Lecture

    Two leading ecologists describe the complex interactions between species and their environment in aquatic ecosystems. 

  • The Great Elephant Census Modeling Activity

    The Great Elephant Census Modeling Activity

    Activity

    In this classroom activity, students will model two types of counting methods, sample counts and total counts, to determine population size. 

  • Selection for Tuskless Elephants

    Selection for Tuskless Elephants

    Scientists at Work

    (6 min 39 sec) Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues made a striking observation: many female elephants lack tusks.

  • Dead Zones in Coastal Ecosystems

    Dead Zones in Coastal Ecosystems

    Data Point

    Researchers overlaid the locations of more than 400 hypoxic systems linked to eutrophication on a map of the global “human footprint.”

  • Exploring Trophic Cascades

    Exploring Trophic Cascades

    Click & Learn

    This interactive explores examples of what can happen when there are changes in the population size of one species in an ecosystem. How are species at other trophic levels affected? How does the ecosystem change?

  • Finding A Place On The Tree

    Finding A Place On The Tree

    Image of the Week

    Dendrogramma is a newly-discovered species of deep sea siphonophore.

  • Human Impacts on Biodiversity

    Human Impacts on Biodiversity

    Activity

    In this activity, students will use trail camera data to answer a scientific research question about the impacts of humans on species diversity in Gorongosa.

  • Following the Matriarch

    Following the Matriarch

    Image of the Week

    A herd of elephants moving across the floodplain grassland of Gorongosa National Park.

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