Charles Runckel, a graduate student in the DeRisi lab, uses the Virochip to examine the mystery of bee colony collapse disorder.
Corn was originally bred from the teosinte plant by native Mexican farmers. The morphologies of modern-day corn and teosinte plants are compared to illustrate how artificial selection can bring about dramatic changes in plants.
Dr. Olivera demonstrates a live specimen of Conus striatus.
This species of cone snail immobilizes its prey in a split second with lightning-strike cabal toxins.
A fish-hunting cone snail strikes its prey with a venomous harpoon, causes paralysis, and eats it.
Larger cone snails produce more venom and are more dangerous to human beings in an accidental stinging.
A worm-hunting cone snail species feeds on fireworms, and is unaffected by the prey's sharp bristles.
A species of fish-hunting cone snail quickly immobilizes its prey and swallows it.
A snail-hunting species of cone snail stings its prey repeatedly, inducing the prey to thrash about.
Unlike a hook-and-line type fish-hunter, a net-hunting cone snail lures its prey into its wide mouth.
These are some of the animal species Charles Darwin would have seen when he visited the Galapagos Islands.
A mini-documentary illustrating the importance of the ocean to the Filipino way of life, and how that close connection helps biodiversity research.
An interview with Dr. Michael McIntosh, who discovered the drug Prialt while working as an undergraduate in Dr. Olivera's lab.
The Philippines archipelago is rich in marine biodiversity, including venomous octopus and venomous snails.
The identity of the stickleback fish stumps the contestants on the game show.
Fishermen harvest deep-sea species of venomous snails by retrieving a net that had been deployed months ago.
Dr. Jason Biggs of the University of Guam Marine Laboratory discusses the anatomy of cone snails and introduces us to a variety of cone snail species with different tactics to hunt and capture their prey.
What medical secrets do venomous snails hold? How can listening in on bacterial conversations help develop new antibiotics? In four presentations, Dr. Bonnie L. Bassler and Dr. Baldomero M. Olivera reveal how a deeper understanding of nature and biodiversity informs their research into new...
Venomous carniverous cone snails are a rich source of molecules for scientific research and potential drug development.
Bacteria are capable of communicating and coordinating their activities with a molecular signaling system called quorum sensing.
Cone snails have evolved many different toxins for different uses. Total molecular biodiversity may number in the millions.
The quorum sensing system is a target for a new class of drugs that interfere with virulence without killing bacteria.
A discussion on biodiversity, endangered habitats, and how best to preserve the Earth's ecosystems, presented by the lecturers along with Dr. E.O. Wilson and Dr. Eric Chivian.
In this ten-minute Q&A session, Dr. Olivera answers questions on cone snail behavior, venoms, and biodiversity.
Explore principles of taxonomy by sorting seashells according to their morphological characteristics and constructing an evolutionary tree.
Explore the biology of the symbiotic relationship between the Hawaiian Bobtail squid and bioluminescent bacteria Vibrio fischeri.
Understand how quorum sensing works by reasoning through experiments involving genetically-engineered bioluminescent bacteria.
Construct evolutionary trees by sorting seashells. To accompany the lecture series Exploring Biodiversity: The Search for New Medicines and the Sorting Seashells Click and Learn interactive.
A text transcript of the 2009 Holiday Lectures on Science, Exploring Biodiversity: The Search for New Medicines.
A chapter list to accompany the DVD.
A poster from the 2012 Holiday Lectures on Science, Changing Planet: Past, Present, Future. It details the importance of foraminifera, known as "forams" for short, in discovering significant changes in Earth's past.
A poster from the 2012 Holiday Lectures on Science, Changing Planet: Past, Present, Future. It shows the different organisms and metabolic diversity that results in a miniature model called a Winogradsky column.
The poster from the 2011 Holiday Lectures on Science, Bones, Stones and Genes: The Origin of Modern Humans. It provides a unique look at the classic "tree of life" and features a timeline of various hominid fossils and their stone tool usage.
The poster from the 2010 Holiday Lectures, Viral Outbreak: The Science of Emerging Disease, illustrating the size, geometry, and different classifications of viruses.
The following classroom-ready resources complement The Origin of Species: The Beak of the Finch. By following four decades of research on the finches of the Galápagos islands, the film illustrates how geography and ecology can drive the evolution of new species.
The following classroom-ready resources complement The Origin of Species: Lizards in an Evolutionary Tree. Research on the anole lizards is enriching our understanding of evolutionary processes, such as adaptation by natural selection, convergent evolution, and the formation of new...
The golden birdwing provided a striking clue to the natural origin of species.
Infant lemurs hitch a ride through the forest by holding on to their mother’s tummy or riding piggyback.
The bill of the buff-tailed sicklebill hummingbird is perfectly shaped to collect nectar from deep within the Centropogon flower.
The Lizard Evolution Virtual Lab was developed by a team of scientists, educators, graphic artists, and film makers to explore the evolution of the anole lizards in the Caribbean.
Gorongosa National Park is rich in diverse species including some found only in and near the park, like this pygmy chameleon.
The following classroom-ready resources complement The Guide: A Biologist in Gorongosa, which tells the story of Tonga Torcida, a young man coming of age on Mount Gorongosa and in the newly revitalized Gorongosa National Park in Mozambique.
Weaver ants labor to carry a live land snail back to their nest in Gorongosa National Park.
Zebras on the move in a remote area of Gorongosa National Park in 2006.
Gorongosa’s spiky pillbug had not been seen for 50 years.
Reef-building corals depend on brown-colored symbiotic algae for survival.
Prehistoric extinction rates are calculated from fossil data in a paleodatabase and compared to today’s extinction rate.
One of the largest populations of Nile crocodiles in Africa congregates on the beaches of Lake Urema in Gorongosa National Park.
Discover the environmental factors that caused the five big mass extinctions in Earth’s history and which species they impacted.
Explore key human impacts on the environment and how they have affected Earth’s landscape, ocean, atmosphere, and biodiversity with this engaging interactive.
The Lizard Evolution Virtual Lab app lets you explore the evolution of the anole lizards in the Caribbean on your iOS device.
The Plymouth anole (Anolis lividus) lizard is found only on the Caribbean island of Montserrat—and it is the only anole species living there.
As a student of divinity at Cambridge University, Charles Darwin was an enthusiastic collector of beetles
A tree scorpion illuminated with UV light gives off a blue-green glow.
Adventurer naturalist Roy Chapman Andrews (center) inspects a nest of fossil dinosaur eggs in the Gobi Desert, Mongolia in 1925.
When heated to a temperature of around 180°C, corn bursts open with a “pop” in mere hundredths of seconds.
There is still time to avoid a sixth mass extinction.
Human activities and their effects on biodiversity in the past, present, and future.
How to preserve genetic diversity that is threatened by habitat loss.
The threat to biodiversity in the ocean differs from the threats on the land.
Coral reefs, how they are threatened by climate change, and how to protect them.
What steps can be taken to avoid the sixth mass extinction?
A sixty-minute discussion on biodiversity.
Pikas are small mammals related to rabbits that can only live in cold climates, either at high latitude or high elevations in North America and Asia.
Field research on coral bleaching suggests possibilities for saving threatened reefs.
Ecosystems in the world-famous national park are threatened by warming temperatures.
This activity supports the film The Origin of Species: Lizards in an Evolutionary Tree. Students are guided to sort the lizard species by appearance, then generate a phylogenetic tree using the lizards’ DNA sequences to evaluate whether species that appear similar are closely related to...
The flight patterns of a flock of black vultures are revealed by a novel digital video technique.
This is a classroom activity in which students use authentic data to assess the threat of coral bleaching around the world. It supports the 2014 Holiday Lectures on Science video featuring Dr. Steven Palumbi.
Gorongosa National Park in Mozambique is a region with high ecological diversity that encompasses two distinct biomes. This activity introduces students to the concept of biomes in conjunction with the Gorongosa National Park interactive map click and learn
Zoom into a coral reef and discover photosynthetic algae inside the coral’s cells. Reef-building corals rely on these symbionts for their survival.
Warthog mothers look after their young in small family groups.
A smalltooth sawfish (Pristis pectinata) patrols the murky waters of the Everglades National Park in Florida.
Leaf-cutter ants practice fungus agriculture to provide the ant colony with a steady source of food.
The early embryonic cells of the sand dollar are caught in the act of synchronized cell division.
Dottyback fish change color by altering the proportions of yellow and black pigment cells in their skin to mimic Damselfish.
The variety of colors of cells in a honeycomb comes from pollen collected from different plant species.
Are we witnessing a sixth mass extinction? What factors threaten ecosystems on land and in the sea? What are researchers doing to try to conserve biodiversity and ecosystems?
This classroom experiment supports the film The Origin of Species: The Beak of the Finch. Students collect and analyze data to learn why even slight variations in beak size can make the difference between life and death.
A highly visual interactive timeline for exploring the history of Gorongosa National Park, from its beginnings as a hunting reserve and decline in the wake of a civil war, to its return to being one of the world’s foremost wildlife treasures and case studies in conservation biology.
Set against the restoration of war-torn Gorongosa National Park in Mozambique, The Guide tells the story of a young man from the local community who discovers a passion for science after meeting world-renowned biologist E.O. Wilson.
The cells of the liverwort (Marchantia polymorpha) are packed with chloroplasts.
The front leg of a sand flea stained with colorful dyes.