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.