Neurologist and author Oliver Sacks brings our attention to Charles Bonnett syndrome -- when visually impaired people experience lucid hallucinations. He describes the experiences of his patients in heartwarming detail and walks us through the biology of this under-reported phenomenon.

With the outbreak of the Zika Virus in much of the southern part of the Western Hemisphere, Americans are wondering what the chance is of an outbreak in the US. RT’s Marina Portnaya visits a micro-biology lab at Miami-Dade College, where Dr. Joe Okungbowa highlights the concern in in South Florida,

Biology teacher Ceri Evans gives a masterclass to students on what he says is arguably the greatest idea anybody ever had: evolution. He uses a series of activities to demonstrate genetic variation, mutation, competition, survival of the fittest, niches and adaptation through natural selection. He a...

This Incredible Animation Shows How Deep The Ocean Really Is: Just how deep does the ocean go? Way further than you think. This animation puts the actual distance into perspective, showing a vast distance between the waves we see and the mysterious point we call Challenger Deep.

The Florida Reef Tract is the third largest coral reef in the world and a vastly important ecosystem for sustaining underwater life. Scientists are working to combat the crisis in the world’s coral reefs—that is, that human beings have lost 25 to 40 percent of the world’s corals in recent decades du

A cluster of fire ants floating on the surface of water is pushed down with a pair of tweezers. Note the deflection of the water surface and how water does not penetrate the raft.

In 1993, researchers discovered a stretch of DNA on the X chromosome they believed to be linked to male homosexuality. After studying the DNA of nearly half a million people with varying sexual experiences, the researchers found no evidence of a single “gay gene.” There was some genetic associatio

Listen to the Natural History Museum in London's human origins expert, Chris Stringer, introduce the Britain: One Million Years of the Human Story exhibition and the people who have called this land their home. The dramatic story of ancient Britain, its changing landscapes and the people that lived ...

The major goal at the Department of Cell Biology at Duke University Medical Center is to understand how cells build and regenerate tissue. Scientists work in close collaboration with physicians to combine the power of genetics in model organisms such as the mouse and zebrafish with cutting edge imag...

Zoom into a coral reef and discover photosynthetic algae inside the coral’s cells. Reef-building corals rely on these symbionts for their survival. This stunning animation is perfect for all levels of biology and environmental science classes. Corals get their energy in part from microscopic symbiot