Elijah Nolan reached out with a small brush dipped in sugar water. A red admiral butterfly with black wings and orange spots crawled onto it. He lifted the butterfly near his eyes to study the spots.

Using unconventional methods, the researchers showed just how good birds are at distinguishing wasp mimics from the real ...

Within three months, a shipment of small branches arrived in California. The branches carried not only cottony cushion scale, ...

However, upon closer inspection, the so-called “black hornet” is actually an entirely different species. With its size of ...