Earth's days are getting longer, science explains why

New research reveals that Earth's days are gradually getting longer, and scientists explain the various factors behind this change. Discover how tectonic shifts, inner core dynamics, and climate change contribute to the lengthening of our days and what this means for our future.

Pets can smell your stress, study finds

A new study reveals that dogs can detect human stress through their sense of smell, reacting emotionally to higher levels of the hormone cortisol in sweat.