Biology

Compared with other arachnids, invasive Joro spiders are calm, cool and collected under stress, a new study shows

Snot is one of the immune system’s efforts to ditch a virus, but how much we produce when sick is a slippery subject

A single-celled organism’s pathfinding reveals connections in the universe’s vast “cosmic web”

Inside giant, iridescent clams are algal farms that could inspire highly efficient bioreactors

The nerd culture powerhouse is rebranding its elves, dwarfs and orcs, previously referred to as races, and moving towards use of the term species

Japanese honeybees use their wings to slap back ants trying to invade their hive

Technological doping refers to the use of equipment—from swimsuits to super shoes—that provides an unfair athletic advantage. But the boundaries of what is allowed are somewhat arbitrary

Reptile teeth have long been considered simple and cheap because the animals replace them regularly. That isn’t so, Komodo dragons show

Dogs can smell when people are stressed, and it seems to make them feel downhearted

Cocaine has been detected in sharks for the first time, but scientists aren’t sure of the impact

A bizarre fossil of a Cambrian creature that looked like an “alien fish taco” reveals how a single group with jaws came to account for around 90 percent of all animal species on Earth

Scientists hope the incredibly rare beaching of a spade-toothed whale will help them learn more about this persistently elusive species