Animals

However, the record holder lived to the age of 23.

They are also reluctant to settle in a new pond if it is more than 750 meters away from others, and is not overgrown by bushes and tall greenery. They also prefer neutral or slightly alkaline waters.

Young are born after three months of gestation.

It reaches an average of 2 meters and weighs up to 360 kilograms.

Male prepares a flat rock for breeding. A female lays 600 to 1500 eggs, depending on her size.

Twins are very rare, occurring in only about 2% of all births. It is even less likely that both pups will survive.

The Japanese, under the leadership of Shirō Ishii, worked on entomological warfare techniques. They ...