Swiss researchers at ETH Zurich and the University of Zurich have discovered that a single gene in a particular aphid wasp decides whether the insects reproduce sexually or asexually. This is not only of interest for pest ...
Plants & Animals
Mar 1, 2011
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Imagine how easy life would be if you could produce offspring without a mate. Sexual reproduction is the most common mating system in the animal kingdom. But in many species, females do not require males to produce offspring ...
Other
Feb 13, 2015
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24
Spines on plants are widely distributed across plant families. The defensive role of spines has previously been associated with leaves, young shoots and reproductive organs. However, the different syndromes of spiny plants ...
Plants & Animals
Apr 29, 2022
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14
Today, we pull the veil back on the secret sex lives of leeches and how researchers at McMaster University and Fisheries and Oceans Canada are using that information to learn about endocrine disrupting chemicals. Leeches, ...
Environment
Jul 21, 2020
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16
A simple, reversible chemical treatment can segregate X-bearing sperm from Y-bearing sperm, allowing dramatic alteration of the normal 50/50 male/female offspring ratio, according to a new study by Masayuki Shimada and colleagues ...
Cell & Microbiology
Aug 13, 2019
1
206
In the animal kingdom, sperm usually are considerably smaller than eggs, which means that males can produce far more of them. Large numbers of tiny sperm can increase the probability of successful fertilization, especially ...
Plants & Animals
May 25, 2016
2
19
Sexual reproduction is costly to those organisms that depend on it, like humans. For starters, only half of the population can bear offspring and the other half has to work hard to make sure they're included in the future ...
Cell & Microbiology
Jul 9, 2013
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The star of Pixar's blockbuster "Finding Nemo" may be about to vanish again—this time for good—as its peculiar mating habits put it at risk from climate change, scientists said on Tuesday.
Ecology
Nov 26, 2019
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8378
The rise of the first complex life depended on vital metals brought up to the Earth's surface from far below in vast granite deposits, a new study argues.
Earth Sciences
Aug 7, 2012
12
0
(PhysOrg.com) -- UQ research has found when it comes to camels, staying cool may be the key to reproductive success.
Plants & Animals
Jul 15, 2009
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