While you might not like how your trash smells, to your dog it is an appealing buffet brimming with apple cores, banana peels, meat scraps and stale bread.

The number of insect species is mind-boggling – and they are a critical part of the environment.

Science uses careful, organized observations and tests to construct theories that are recorded, passed on to others and built on.

A physicist explains that the short answer is both … and neither.

Puffy to wispy, barely there or dark and menacing, clouds come in many shapes and sizes. Each tells a story about what’s going on in the atmosphere.

Animals can be born with genetic or developmental issues that make it hard for them to live normal lives. They also can develop mental health problems in response to conditions around them.

Blue, green orange, brown − water comes in many colors, depending on what’s in it.

Many animals show signs of high intelligence, including strong memory, self-awareness and communication skills.

Black doesn’t appear in the visible spectrum of electromagnetic radiation. So why do we still see it?

Pain is unpleasant, but it does have a purpose.