Learn more about piranhas, why they have such a powerful bite, and why there are so many misconceptions around them.

This video dives into the world of animals with the most unusual and astonishing breeding habits on Earth. Scientists reveal how each species evolved rituals and reproductive strategies unlike ...

A Helena judge has allowed the wolf hunting and trapping regulations the Montana Fish and Wildlife Commission adopted earlier this year to stand, despite flagging “serious concerns” about the state’s ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Great apes are humans' closest relatives in the animal kingdom. As much as 98.8% of their DNA is shared, but while the number ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

It all began with the discovery of ancient owl pellets – a gross but normal part of their digestion where they essentially ...

Zebrafish have long contributed to biological and medical research, especially as a model for developmental and toxicological studies. Particularly useful attributes of zebrafish include: ex vivo ...

The study of the physiology and ecology of animals that don't have backbones, ranging from worms to sea stars, and of parasites, which can often provide insights into complex ecosystems. (Sea star ...