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Frogs learn to recognise the smell of their enemies while they are still developing as embryos, say scientists. Researchers in the US and Canada found that woodfrog embryos were able to learn the "level of threat" posed by their future predators - salamanders. Embryos put into water containing the odour of a salamander and the odour of injured tadpoles learned that the predator's smell was a threat. And the stronger the...

2009-10-30

 embryo frog smell predator
Cats, rats and other predators produce a chemical signal that terrifies mice, according to new research. Scientists in the US discovered that when mice detect specific proteins found in cat saliva and rat urine they react with fear. These proteins, called Mups, act on cells in a special sensory organ in the mouse, called the vomeronasal organ.

2010-05-17

 smell pheromone cat mouse rat saliva protein detection fear predator
Bumblebees' distinctive bright yellow and black stripes may not be what keeps them safe from their enemies, scientists say...

2010-05-28

 bee warning stripe predator
A colossal squid has been caught in Antarctic waters, the first example of Mesonychoteuthis hamiltoni retrieved virtually intact from the surface of the ocean.

2003-04-02

 squid ocean predator Antarctica