LONDON, Oct 19 — It was a big week at the San Diego Zoo in California.

First they celebrated the birth of a southern white rhino, which entered the world weighing about 54.5 kilogrammes.

At the other end of the scale is this baby aye-aye, which weighs a mere 250 grammes. Look at those big eyes...

A zoo in Crimea welcomed these white tiger cubs. For now, they're lying down with some baby lions.

In Chile, scientists are testing a contraceptive vaccine for dogs, which they say can be used on both male and female pooches.

They hope it will help reduce the problem of pet over-population. — Reuters

Image of a baby white rhino born at the San Diego Zoo in California from the Reuters video.