Despite the jurassic-sounding name, pteridomania (from the Greek for fern, plant and mania) was responsible for the 19th century fern leaf collector's job.
First things first: eels are fish.
A growing consensus among those who hold this view is that sleep is needed for maintaining a healthy nervous system, not necessarily a brain.
How do fish swim? Having fins and tails help, But it takes more than that to be fast and avoid danger. Diving into fish physics.
Those who view animals as property misunderstand the nature of property, a legal scholar suggests.
Research seems to indicate that human echolocation is surprisingly sophisticated, and may aid a deeper understanding of hearing and sensory perception.
Packrat nests, preserved by a combination of the chemistry of urine and the desert air, open a window into centuries of local climate change.
Floating masses of fire ants have been observed drifting in the floodwaters resulting from Hurricane Harvey. How does a swarm of fire ants float?
Rabies began a contentious debate between Victorian pet owners and veterinary experts about how to regulate dog health. Rough.
Freshwater mussels were once found in astonishing numbers and diversity in North America. Then came the button fanciers, and then the pearl-makers.