PBS
Webs vs Wings: the Arms Race of the Air
New ReviewSpiders and their ancestors have been driving an arms race that began before either stepped foot onto land and resulted in the first powered flight on Earth. But how did this competition of webs versus wings drive such a massive...
Bozeman Science
Behavior and Natural Selection
Paul Andersen explains how the behavior of various organisms is shaped by natural selection. The action of phototropism and the timing of photoperiodism have both been shaped by the relative availability of light. Courtship in the bower...
SciShow
The Baller Rat That Kicks Rattlesnakes in the Face
This small animal might seem like a run-of-the-mill rodent at first, but its huge back legs can produce kicks hard enough to let it rumble with rattlesnakes looking for a meal.
SciShow
6 Organisms That Cheat the System
Humans are not the only animal that use cheats to make things easier. Some of the animals and plants have weird but very clever cheating skills to survive in their environment, too.
Bozeman Science
Coevolution
Paul Andersen explains the concept of coevolution. He begins with an analogy comparing the relationship of humans to technology with those of coevolving species. He then discriminates between coevolution and convergent evolution. He...
Crash Course
Community Ecology II: Predators - Crash Course Ecology
Hank gets to the more violent part of community ecology by describing predation and the many ways prey organisms have developed to avoid it.
Crash Course
The History of Life on Earth - Crash Course Ecology
With a solid understanding of biology on the small scale under our belts, it's time for the long view - for the next twelve weeks, we'll be learning how the living things that we've studied interact with and influence each other and...
Astrum
Would Life Develop Differently on Another Planet?
Finding out the appearance of aliens from what we already know about convergent evolution.
Bizarre Beasts
Figs Eat Wasps Before You Eat The Fig
The life of the fig wasp is nature at its worst—from our human perspective, anyway. In order to lay their eggs, female fig wasps have to squeeze into the flowering body of a fig, losing their wings and antennae along the way. It's all...
Getty Images
Purple Anemone (order Actiniaria) and clown fish (Amphiprion sp.), Maldives
Purple Anemone (order Actiniaria) and clown fish (Amphiprion sp.), Maldives
Getty Images
Purple Anemone (order Actiniaria) and clown fish (Amphiprion sp.), Maldives
Purple Anemone (order Actiniaria) and clown fish (Amphiprion sp.), Maldives
Getty Images
Purple Anemone (order Actiniaria) and clown fish (Amphiprion sp.), Maldives
Purple Anemone (order Actiniaria) and clown fish (Amphiprion sp.), Maldives
Howard Hughes Medical Institute
Hhmi: Bio Interactive: Making of the Fittest: Co Evolution of Genes & Culture
Follow human geneticist Spencer Wells, Director of the Genographic Project of the National Geographic Society, as he tracks down the genetic changes associated with the ability to digest lactose as adults, tracing the origin of the trait...
Crash Course
Crash Course Ecology #5: Community Ecology Ii: Predators
Hank gets to the more violent part of community ecology by describing predation and the many ways prey organisms have developed to avoid it. [10:23]
Bozeman Science
Bozeman Science: Coevolution
Paul Andersen explains the concept of coevolution. He begins with an analogy comparing the relationship of humans to technology with those of coevolving species. He then discriminates between coevolution and convergent evolution. He...