Why birds don't have teeth
Why did birds lose their teeth? Was it so they would be lighter in the air? Or are pointy beaks better for worm-eating than the jagged jaws of dinosaur ancestors?
Why did birds lose their teeth? Was it so they would be lighter in the air? Or are pointy beaks better for worm-eating than the jagged jaws of dinosaur ancestors?
Evolution
May 23, 2018
14
723
An unfortunate church dinner more than 100 years ago did more than just spread typhoid fever to scores of Californians. It led theorists on a quest to understand why many diseases - including typhoid, measles, polio, malaria, ...
Mathematics
Jan 2, 2018
3
245
Parents need to synchronize the care for their offspring. This leads to extreme and unexpected diversity in how parents attend their nest in shorebirds, finds an international team led by Max Planck researchers. Some pairs ...
Plants & Animals
Nov 24, 2016
0
206
Bisphenol A (BPA) is a chemical used in many consumer products including water bottles, metal food storage products and certain resins. Often, aquatic environments such as rivers and streams become reservoirs for BPA, affecting ...
Ecology
Aug 23, 2016
0
391
Much like parents who talk to a pregnant woman's belly, some birds sing to their eggs before they hatch, and the reason may be to prepare them for a warming world, researchers said Thursday.
Plants & Animals
Aug 18, 2016
3
518
Researchers are a step closer to understanding the birth of the sun.
Astronomy
Aug 7, 2014
0
0
(Phys.org) —Research into the incubation behaviour of birds suggests the type of parental care carried out by their long extinct ancestors.
Archaeology
May 15, 2013
2
0
A small, bird-like North American dinosaur incubated its eggs in a similar way to brooding birds – bolstering the evolutionary link between birds and dinosaurs, researchers at the University of Calgary and Montana State ...
Archaeology
Apr 18, 2013
3
0
It's always a good idea to listen to your mother, but that goes double for baby fairy-wrens even before they are hatched.
Plants & Animals
Nov 8, 2012
0
0
(Phys.org) -- Researchers in Britain are confused by the mute swans of Abbotsbury Swannery. They lay four to ten eggs during a laying cycle which lasts generally a couple of days. During that time, they sometimes sit on the ...