The first examples of mimicry we have found date back to before flowering plants. The video goes in depth on predators at the community ecology level. It includes discussions of herbivores, parasitism, adaptations, cryptic coloration,...

A eloquent narrative and unique animation expound on the megafauna and megaflora that once dominated the planet and helped keep ecosystems in balance. Is there anything that can be done to undo the damage we've done? The speaker proposes...

A young reptile must use its natural speed to steer free from the shark. Watch this video to learn how another prehistoric animal keeps himself under the sea.

Each biome has self sustaining communities, but how did these unique and stable communities form? Investigate how these evolved with changing animal interactions.

Check out this stand-off between a team of half-pound water dikkops and a half-ton crocodile against a hungry monitor lizard. As the lizard is hunting for crocodile eggs, a pair of feisty dikkops act as a defense for themselves and the...

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]