Remove the top male spotty fish and, within minutes, the next-in-line female morphs into the tank s new tyrant charging and nipping rivals while her body quietly begins a weeks-long transition to male ...

Water and air pose completely different challenges to animals on a number of levels.

In case of sudden cardiac arrests, there is no breathlessness, no dizziness, no chest pain, no discomfort till the moment it ...

Jellyfish, ancient and diverse, exhibit remarkable adaptations, from bioluminescence to immortality. These gelatinous creatures, mostly water, thrive ...

Much of this will already sound familiar, and the list includes the Mediterranean diet, regular exercise, social ...

The river roars in the heat of the summer. The water is clear and cool, and a respite from the high sun. An angler leans back ...

In TODAY.com's Expert Tip of the Day, a dietitian reveals her go-to accessible and cheap food rich in brain-boosting omega-3s ...

When a sound repeats steadily—like a drumbeat, a bell, or even a clock ticking—it doesn’t just echo in your ears. Deep inside your brain, something far more interesting happens.

Scientists have long assumed that fish save energy by swimming in neat diamond formations, but a new study using advanced 3D ...