Tag: "bobbing" at biology news
Bobbing birds do it for a reason
...ngs that strongly suggest that for some birds head bobbing
is critical for the stabilization of their visual world, despite the motion of their bodies, and thereby enables the accurate detection of objects such as food items. The motion associated with the head-bobbing behavior consists of alternate phases ...
Lizards 'shout' against a noisy background
... of their territory by sitting up on a tree trunk, bobbing
their heads up and down and extending a colorful throat pouch. They can spot a rival lizard up to 25 meters away, said Terry Ord, a postdoctoral researcher at UC Davis who is working with Judy Stamps, professor of evolution and ecology. The lizard...
Helium helps patients breathe easier
It makes for bobbing
balloons and squeaky voices, but now helium is also helping people with severe respiratory problems breathe easier. Researchers at the University of Alberta in Edmonton, Canada have discovered that by combining helium with 40 per cent oxygen allowe...