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Birds which build in trees generally have blue or greenish eggs, either spotted or unspotted, while birds that build in bushes or near or on the ground are likely to lay speckled eggs. The color of individual eggs is also genetically influenced, and appears to be inherited through the mother only, suggesting the gene responsible for ...
Doug Peltz, popularly known as Mystery Doug, is an American science communicator and entrepreneur based in San Francisco. He is best known as the co-founder of the popular science curriculum Mystery Science, a science program used in 50% of U.S. elementary schools and recently acquired by Discovery Education . [ 2 ]
During co-nesting, before a bird starts laying its own eggs, it will toss out eggs laid previously by other females. [8] As a result, the last egg-layers may contribute more eggs to the common nest, [8] and this will increase the chances that newly laid eggs bearing the genetic material of that female will have a better chance of survival.
With climate change spurring earlier springs across much of North America, many birds are laying their eggs earlier in the year, according to a new study – adding to mounting evidence that ...
The only living mammals that lay eggs are echidnas and platypuses. In the latter, the eggs develop in utero for about 28 days, with only about 10 days of external incubation (in contrast to a chicken egg, which spends about one day in tract and 21 days externally). [11] After laying her eggs, the female curls around them.
Lack's principle implies that birds that happen to lay more eggs than the optimum will most likely have fewer fledglings (young that successfully fly from the nest) because the parent birds will be unable to collect enough food for them all. [1]
A new bird flu strain was detected on a California duck farm. But what's the difference between H5N9 and H5N1, and is it safe to eat poultry? A doctor explains.
When it is Clem's turn, he puts the President into maintenance mode by saying, "This is Worker speaking. Hello." The computer responds with the length of time that it has been running. Clem then gets access to Doctor Memory (the master control), and attempts to confuse the system with a riddle: "Why does the porridge bird lay his egg in the air?"