Scientists finally know the clever tricks orca use to hunt whale sharks
For the first time, scientists have captured video evidence of orcas cooperatively hunting whale sharks, the largest species ...
Natural History Museum%2c London1 年
The end of sharks
Since 1972, in the northwest Atlantic, the blacktip shark population has fallen by up to 93 per cent, the tiger shark by 97 per cent and the bull shark, dusky shark and smooth hammerhead populations ...