This alarming photo shows a rainbow trout fingerling peering from the mouth of a northern pike as it is about to be eaten. The unsettling scene was captured in January 2001 at an aquarium in Anchorage, Alaska, by Jim Lavrakas.
Entries Tagged as ‘Predation’
01/11/2009
PREY LEARN THE FUTURE
Predation has shaped the whole of the living world, as prey respond to evolutionary changes in predators, and vice versa. The earlier prey can detect a predator, the greater their possibility of surviving, either by fleeing or hiding. In many aquatic species, prey detection can occur from beyond the grave – for example, Daphnia (“water-fleas”) [...]
22/04/2009
MORAY EEL – THE ORIGINAL ALIEN?
September 2007 Moray eels possess a second pair of evertible jaws which come out and bring prey back into the throat, once it’s been seized by the nasty teeth you can normally see. Excellent set of videos and articles at the Nature website (you or your institution will need a subscription to see the full articles). The News [...]
22/04/2009
GO HERBIVORES
September 2007 This YouTube video was sent in by Robbie Price (2nd Year). It’s from the Kruger National Park (where the First Year Animal Behaviour Field Course goes) and starts off as your traditional scene of lions hunting wildebeest. But then something unusual happens…
20/04/2009
CHIMP TOOL USE – 2
February 2007 It now appears that chimps not only use rocks and sticks, they also use ”spears”, according to this latest article in Current Biology (open access). Females pick up tool use quicker than males, which may have implications for the evolution of tool use in our species. BBC summary here.
20/04/2009
WHAT WOLVES DO TO ELK
February 2007 A brief study in Science shows that elk have fewer offspring in years when wolves are plentiful, suggesting an indirect cost to predator avoidance. You or your institution will need a subscription to get past the abstract.
