In the study by Anderson et al (1992), out of a group of 17 juvenile female rhesus macaques, 15 were observed to repeatedly dive into a small swimming pool and engage in underwater swimming. As well ...

In the vast, open water, fish rarely swim solo ... survival tactics in the underwater world. Here are five photos that beautifully illustrate why fish choose to group up. Striped eel catfish ...

The semi-aquatic lizards found in Costa Rica's forests sometimes escape attackers by breathing a bubble over their heads that ...