Once upon a time, people may have understood this condition in terms of "elves" and "fairies". Thankfully, modern science gives us a more sensitive accounting.
Hippos hang out in the water most of the time, but are they good swimmers?
The story of evolution is replete with twists and turns. The land-bound blenny fish is a prime example.
We humans tend to focus on the differences between us, even in spite of abundant similarities.
While the nicotine in tobacco is bad for humans, it's not bad for everyone in the animal kingdom.
Most people know that it's a good idea to stay away from fatty foods, but do you know how the body stores fat?
Our outdoor cats can do a lot of ecological damage when we're not watching.
Trampling obviously harms grass, but do you know exactly how it does?
Sounds like 'baba' and 'dada' are common to hear from a six-month old. This is the genesis of sophisticated human speech.
Is drinking yourself 'blind' just an exaggeration, like 'eating till you burst'? Or can alcohol really turn out the lights?