Image for Vampire supersenses

Vampire supersenses

Duration: 00:51

Vampire bats use various super senses such as echolocation to find their prey. Once a victim is located, razor-sharp teeth and special saliva containing anticoagulants is used to prevent their blood-filled victim's wound from healing. This provides a steady pool of blood for them to lap up.

Available since: Mon 2 Dec 2013

This clip is from

The Dark: Nature's Nighttime World Patagonian Mountains

3/3 The expedition culminates in South America, where the puma's hunting behaviour is filmed.

First broadcast: 12 Aug 2012

Image for Patagonian Mountains Not currently available on BBC iPlayer

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.

Added. Check out your playlist Dismiss