Some animals make the strangest, most unexpected sounds that will leave you speechless. From deep-sea creatures with eerie calls to land animals that sound like screaming humans, nature’s ...

The producers of Sir David Attenborough’s latest natural history series have admitted they recreated animal sound effects in the studio to give viewers a more “realistic” experience.

Men are speaking what sounds a bit like Spanish, maybe Portuguese, and you can hear exotic animals calling through the bush. Right, so you must be somewhere in South America.