Dinosaurs were social animals, moving in herds, hunting in packs, but could they dance?

When you see a black cat, you might think of witches and goth bands, but they're also a great example of a melanistic animal, and they're not the only ones! Chapters MELANISTIC ANIMAL 0:24 PYGMY GRASSHOPPERS 0:48 BLACK PANTHERS 1:53...

There's a lot we don't know about how and when dogs were first domesticated. But we do know that the process made dogs very different from their wild cousins, in some unexpected ways.

How to Keep Elephants and Wolves Out of Your Yard

Sounds that animals make can be really different, and it turns out that there's a reason why some species communicate with certain sounds.

Since their emergence over 200,000 years ago, modern humans have established communities all over the planet. But they didn't do it alone. Whatever corner of the globe you find humans in today, you're likely to find another species as...

The Tasmanian tiger was officially declared extinct in 1986, but there are some who still hold out hope.

Paul Andersen explains the niche. He gives three different pronunciations and two different definitions. He then discusses the competitive exclusion principle and the idea that a niche cannot be shared by two species.

It’s so easy to forgive a dog, especially when they start with those puppy dog eyes. As it turns out, those puppy dog eyes and the effect they have are no accident and the result of centuries of domestication.

Wolves were once native to the US' Yellowstone National Park -- until hunting wiped them out. But when, in 1995, the wolves began to come back (thanks to an aggressive management program), something interesting happened: the rest of the...

Hybrid organisms are rare, and most end up sterile, like mules. But sometimes, three or more species come together to create multi-species hybrids, and they can and have been really useful.

Werewolves might not be real, but the myths about them could have come from real scientific phenomena, like a misunderstanding of certain illnesses.

In this video Paul Andersen explains the importance of social interactions and group behavior. Organisms live in groups because it overs them greater success and has been selected for through natural selection. Some groups are stable...

Paul Andersen explains how populations interact in an ecosystem. The symbiosis of several populations is based on effects that may be neutral, positive, or negative. Interactions like mutualism, commensalism and parasitism are...

Dr. Mark Hebblewhite comes to the SciShow studio to talk to Hank about his research into ungulate herbivores and their predator-prey relationships with a variety of carnivores.

Even if you have a dog of your own, we bet you don’t know these three amazing things about our furry best friends!

Our planet was once populated by megafauna, big top-of-the-food-chain predators that played their part in balancing our ecosystems. When those megafauna disappear, the result is a "trophic cascade," where every part of the ecosystem...

In this collection of classic MinuteEarth videos, we learn more about the planet’s two favorite pets.

When you hear the words dire wolf, your mind might jump to Game of Thrones or Dungeons and Dragons, but dire wolves are not just in the realm of fantasy and fiction. They were real animals that lived during the last Ice Age, and we're...

Of all the species that humans have domesticated, dogs are our oldest animal friends. But how did a group of wolves become the furry pup at the end of the bed? New research is finally unlocking the paw-in-hand evolution of dogs and...

We don’t expect animals to act in a way that doesn’t directly benefit their species. But humpback whales are willing to take on one of their few natural predators to become the heroes of the ocean!

Paul Andersen differentiates between biotic and abiotic factors. He explains how both abiotic and biotic factors can affect organisms at the level of the cell, the population and even the ecosystem. The complexities of biofilms,...

Hank gets to the more violent part of community ecology by describing predation and the many ways prey organisms have developed to avoid it.

What do gray wolves, elephants, and parrotfish have in common? They're all keystone species, which means they have an especially large impact on their habitat. SciShow explores how these animals keep their ecosystems running.