Mating and Breeding News
July 4, 2015

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updated 2:46am EDT

More Mating and Breeding News
July 4, 2015

June 19, 2015 — A new method of controlled ovarian hyperstimulation, termed ultra-superovulation, has been developed by researchers in which ovulation of a very large number of eggs from one female mouse occurs. ... read more

June 18, 2015 — The line between bird species is sometimes blurry, with related species interbreeding where their ranges overlap to create populations of hybrid offspring. A new study shows that in the Saltmarsh ... read more

To Be Sperm, or Not to Be Sperm?

June 11, 2015 — Researchers have found, for the first time in vertebrates, a genetic switch that determines whether germ cells become sperm or eggs. The gene is named foxl3, and has been identified using a small ... read more

June 11, 2015 — Researchers studying banded mongooses in Uganda have discovered that these small mammals are able to discriminate between relatives and non-relatives to avoid ... read more

June 11, 2015 — Cuckoo finches in Africa have adopted a unique disguise to help them lay their eggs in other birds' nests, biologists have ... read more

June 10, 2015 — Everyone likes things that are bad for them sometimes --including birds. When an animal makes choices that are harmful for it, by reducing their lifespan, reproductive success, etc., this is known as ... read more

Loon Chicks Grow Fast, Fledge Early to Give Parents a Break

June 8, 2015 — Raising healthy chicks is always a challenge, but in a cold, fish-free Arctic lake, it's an enormous undertaking. Red-throated Loon parents must constantly fly back and forth between their ... read more

June 5, 2015 — Adding eggs to a salad with a variety of raw vegetables is an effective method to improve the absorption of carotenoids, which are fat-soluble nutrients that help reduce inflammation and oxidative ... read more

June 4, 2015 — Some near-extinct species should be encouraged to breed in the wild rather than in captivity, according to new research. The study looks at the critically endangered Great Indian Bustard (Ardeotis ... read more

Extra DNA Creates Cucumber With All Female Flowers

June 4, 2015 — A new study identifies the gene duplication that causes cucumber varieties produce only female flowers -- a high-yeild variety. The researchers discovered the extra DNA by screening genome sequences ... read more

June 4, 2015 — A new study of New York state apple orchards finds that pesticides harm wild bees, and fungicides labeled 'safe for bees' also indirectly may threaten native ... read more

June 4, 2015 — In many animal species, the chromosomes differ between the sexes. The male has a Y chromosome. In some animals, however, for example birds, it is the other way round. In birds, the females have their ... read more

June 3, 2015 — Compared with early birds, late risers are more likely to be cuckolded, a group of international researchers has found. The study's lead author said they found that early risers used that time ... read more

June 1, 2015 — Some female members of a critically endangered species of sawfish are reproducing in the wild without sex. The discovery marks the first time living offspring from 'virgin births' have been ... read more

May 28, 2015 — Men and women often enter relationships with different long-term goals. In the animal world, differences in approaches to reproductive success can lead to sexual conflict. In a new study, scientists ... read more

May 28, 2015 — The numbers of American eels in freshwater areas have been decreasing rapidly but scientists have been puzzled as to why the fish can't recolonize. Now, a new look at eel genetics finds that ... read more

May 27, 2015 — A longhorned beetle's sexy scent might make a female perk up her antennae. But when the males of several species all smell the same, a female cannot choose by cologne alone. For these beetles to ... read more

May 27, 2015 — A female Yangtze giant softshell turtle (Rafetus swinhoei) -- potentially the last female of her species -- has been artificially inseminated. The procedure, which brought together top scientists ... read more

May 26, 2015 — For decades, researchers have been making artificial eggs out of plaster, wood, and other materials to test how birds identify and reject the eggs that invading 'brood parasites' sometimes ... read more

May 26, 2015 — Biologists have discovered that one of nature’s most important pollinators - the buff-tailed bumblebee – either ascends to the status of queen or remains a lowly worker bee based on which genes ... read more

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