Eiichiro Oda, the author of One Piece, had plans for another manga after One Piece. Here's where this plan is at right now.

The amount of sperm released decreased sharply with each mating during a single day, reducing the males' fertilization rate.

They found that male medaka can mate 19 times per day on average. In the first three mating sessions, the medaka released ...

If you consider yourself a friend to the felines, hop on a boat and visit this cat island in Japan, where there are few ...