The Trump administration has delayed a decision on whether to extend federal protections to monarch butterflies indefinitely.

This important study shows that different forms and mixtures of cardenolide toxins in tropical milkweed, especially nitrogen- and sulfur-containing types, change how monarch caterpillars eat, grow, ...

Most of us picture a perfect garden as neat, trimmed, and cleared of every fallen leaf by the time winter arrives.

Monarch butterflies inspire awe through migrations that span thousands of miles across North America—a cycle repeated ...

Despite being the size of sparrows, collared falconets are known for their fierce hunting abilities and can take down birds ...

Every piece of the natural world is important, playing a role in supporting other pieces and keeping the whole shebang stable and resilient. But some species seem to do more than their share. A good ...

Discover how MotoGP electronics, from ECUs to traction control and engine braking management, enhance performance, safety and speed in the most exciting sport on earth.

As you first begin considering your approach, Warren has some suggestions.

Moths sometimes drink the tears of other animals, but the behavior has mostly been observed in the tropics. New photographs ...

Students at K.O. Knudson Middle School have successfully convinced Las Vegas Mayor Shelley Berkley to sign the Mayor's ...

It represents a milestone for Project Psyche, an international initiative aiming to sequence all 11,665 species of ...

There is more to hibernation than having a long winter’s nap, says Norfolk Wildlife Trust conservation officer .