An international team of researchers has discovered that contrary to conventional views, a male mammal was found able to exert inadvertent gender bias ratios in his offspring. In their paper published in the journal Proceedings ...
(Phys.org) —Female pigs' reproductive systems recognise whether a sperm will produce a boy or a girl before it reaches and fertilises the egg, and their oviduct (fallopian tubes) change in response, according to new research ...
Plants & Animals
May 21, 2014
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0
Social monogamy, where one breeding female and one breeding male are closely associated with each other over several breeding seasons, appears to have evolved as a mating strategy, new research reveals. It was previously ...
Evolution
Jul 29, 2013
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(PhysOrg.com) -- A genetics research group working in a lab in Kansas, has succeeded in creating a new species of lizard by mating two distinct species of North American Whiptails, both native to New Mexico. The offspring, ...
For some fish, being born close to a new moon increases the chances they will develop as male, while female offspring are more likely when the moon is full, a new study has found.
Plants & Animals
Aug 8, 2024
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8
Although females often engage in more reproductive activities, they tend to live longer than their males. However, no empirical study has interpreted why females often live longer than their males while suffering from costly ...
Plants & Animals
May 31, 2024
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31
From microbes in the human gut to symbiotic algae in coral reefs, research in recent decades has increasingly revealed the pivotal roles that microorganisms (or microbial species) play in shaping the biology of host organisms ...
Evolution
Apr 17, 2024
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4
When animals of two different species mate, their hybrid offspring can be unhealthy or sterile. Often, only one sex is affected.
Evolution
Nov 20, 2023
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28
From an evolutionary standpoint, the drive to reproduce is fundamentally guided by an instinct to pass genes along to the next generation. But in practice, reproduction is often much more nuanced and varied. In species after ...
Evolution
Aug 23, 2023
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27
In a new study, researchers and members of the Muwekma Ohlone Tribe of the San Francisco Bay Area are the first to publish evidence of wealth-driven patterns in maternal investment among ancient populations.
Archaeology
Jul 13, 2023
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