For some animals, reproduction comes at the ultimate cost—their own lives. While this may seem extreme, it’s a natural ...

Humans have had a long and interesting relationship with the moon. We have used it to make calendars, to provide light at night, and it features heavily in storytelling. Of course, more recently ...

Mayfly adults typically live for only one day. The female mayfly may live for less than five minutes as an adult ...

Mayflies don’t waste time ... This is part of a reproductive strategy called semelparity, where an animal reproduces once and dies soon after. The path to reproduction for an eel is a marathon.