Extensive triple digit heat hit Philadelphia as the heat dome crushing the Eastern half of the nation sizzled to what should be its worst Tuesday.

See how the Columbus Zoo & Aquarium keeps animals safe and cool during extreme heat with shaded areas and special care from ...

Elephants, chimpanzees and otters cool off from the heat with water and ice treats at the Maryland Zoo in Baltimore on June 24.

See the best animal photos of 2018. Get up close to a shark feeding frenzy and meat-eating bats in these amazing pictures selected by National Geographic editors. By Natasha Daly.

Archaeologists Thought They Found an Ancient Roman Home. They Only Scratched the Surface.