Here's a fascinating tidbit about sea turtles - their gender depends on temperature. The warmer the temperature is, the bigger probability that hatchlings will turn female. Because of global warming, the number of female sea turtles are increasing dramatically.

According to the study of researchers from the National Oceanic and Atmospheric Administration, California State University and Worldwide Fund for Nature Australia,:

"Combining our results with temperature data show that the northern GBR green turtle rookeries have been producing primarily females for more than two decades and that the complete feminisation of this population is possible in the near future."

Once a year, millions of baby crabs can be seen making their way to the beaches of Christmas Island during mating season. These crabs came from the ocean and are heading towards the jungle where the adult crabs live.

The march produces a sea of crimson, a sight so amazing that it has become a tourist attraction. The tide of crustaceans crawling all over the beach is so thick it can be seen from Google Earth. Just try to imagine that!

The annual mating season of the crabs attracted tourists to Christmas Island.

Monarch butterflies are perhaps one of the most interesting species, with wings that seem to be a work of art. They can only live from two weeks to five months the most. Apparently, there was a certain butterfly on a brink of death. It basically came into this world with a defected wing.

Romy McCloskey vowed to raise three monarch butterflies, but one of these creatures had a problem on its wings. Determined he could save it, Romy turned her home into a mini operating room. She even used common household items in performing a wing transplant. Yes, that's right – a wing transplant!

What is more interesting is the fact that Romy had no medical expertise whatsoever. She was a “professional costume designer and master hand embroiderer,” though. Still, she managed to make the operation successful.