The blooms have become an annual problem in the Great Lakes. DNA studies show what’s growing there and why it’s dangerous.

The risk of harmful algal blooms can be reduced. The biggest drivers of the increase are farm fertilizer and climate change.

The summer heat has crept in—and fleas have owners and pets alike itching. An expert has tips to help your pets remain flea-free.

When volcanoes like Alaska’s Mount Spurr erupt, the ash can damage people’s lungs, smother crops and kill animals, and the harm can continue to spread long afterward.

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.

Do you have a secure or anxious attachment with your pet?

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.

Responsible use of flea treatments could protect both pets and wildlife.

Understanding the number and origin of animals entering a country is important to control the health and ecological problems imported wildlife can bring.

Understanding the number and origin of animals entering a country is important to control the health and ecological problems imported wildlife can bring.