Here are 10 animals that have some of the highest levels of testosterone and the impact it has on their behavior and characteristics.

Four people have now been bitten by sharks in the last two days in New South Wales, including three in Sydney Harbor. Two people are in critical condition. The shark species responsible isn't yet ...

Humane World for Animals Australia's marine ecologist, Lawrence Chlebeck is warning against rising calls for a cull of bull ...

Scientists warn that proposed shark nets for protecting swimmers near a new €100 million Club Med resort in South Africa ...

Spearfishing Cobia of Bull sharks it the scariest but funniest way of spearfishing. The shark doesn't like the Cobia and normally doesn't try to eat it afterwards. The Cobia is not a baby shark, but a ...

Bull sharks are not something you see every day in the Brisbane River, but it is a well-known fact that they are there. Local Quentin Arnstrong was on his usual morning river walk around Newstead in ...