Related topics: facial expressions

New research uses novel approach to study plant mimicry

Batesian mimicry is a common evolutionary tool where unprotected species imitate harmful or poisonous species to protect themselves from predators. To date, nearly all examples of Batesian mimicry have come from studies on ...

Deadly snakes or just pretending? The evolution of mimicry

For more than a century, brightly banded and sometimes deadly coral snakes have been held up as textbook examples of a mimicry system shaped by evolution, in which a harmless species deters predators by imitating a harmful ...

Video: Galectins defend against wolves in sheeps' clothing

To prevent auto-immune attack, our bodies avoid making antibodies against molecules found on our own cells. That leaves gaps in our immune defenses bacteria could exploit. Some of those gaps are filled by galectins, a family ...

Beat-keeping sea lion shows surprising rhythmic ability

Ronan, a California sea lion at Long Marine Laboratory at the University of California, Santa Cruz, became an Internet sensation last year when UCSC scientists published a paper describing her ability to bob her head in time ...

Cuckoos impersonate hawks by matching their 'outfits'

New research shows that cuckoos have striped or "barred" feathers that resemble local birds of prey, such as sparrowhawks, that may be used to frighten birds into briefly fleeing their nest in order to lay their parasitic ...

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