(PhysOrg.com) -- Scientists studying tropical guppies have discovered that the less colorful and attractive males have better quality sperm, while the attractive fish invest in their appearance at the expense of sperm quality.
Researchers at the California Institute of Technology (Caltech) and the University of California, San Diego (UCSD) have discovered that injecting a simple hormone into leeches creates a novel way to study how hormones and ...
Cell & Microbiology
Mar 16, 2010
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Dark spots on flower petals are common across many angiosperm plant families and occur on flowers such as some lilies, orchids, and daisies. Much research has been done on the physiological and behavioral mechanisms for ...
Plants & Animals
Dec 18, 2009
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Leave it to geneticists to answer a question that has perplexed humanity since the dawn of time: does love at first sight truly exist? According to a study published in the April 2009 issue of the journal Genetics, a team ...
Other
Apr 7, 2009
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(PhysOrg.com) -- Female seed beetles are known for their promiscuity, a surprising fact given that the males of the species have dangerously sharp spikes on their sex organs. Now a U of T Mississauga team led by an undergraduate ...
Plants & Animals
Mar 5, 2009
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In the intense male–male competition for females, males often develop alternative reproductive tactics to achieve successful reproduction through unconventional means. These tactics often arise from their own condition ...
Plants & Animals
Aug 22, 2023
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Paleontologists said Thursday they had discovered a new giant carnivorous dinosaur species that had a massive head and tiny arms, just like Tyrannosaurus rex.
Paleontology & Fossils
Jul 10, 2022
1
52
A research team of the Faculty of Biology and the Biodiversity Research Institute (IRBio) of the University of Barcelona has sequenced the genome of the spider Dysdera silvatica Schmidt 1981, an endemic species living in ...
Plants & Animals
Sep 5, 2019
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5
Scientists have studied the organization and function of social insect colonies since Charles Darwin (1809-1882) investigated beehives near his home in Kent with the help of his five children. Since then, prompted by the ...
Plants & Animals
Sep 13, 2017
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30
Genetic analysis revealed that critically endangered Orinoco crocodile hatchlings from the same clutch may have multiple fathers, according to a study published March 16, 2016 in the open-access journal PLOS ONE by Natalia ...
Plants & Animals
Mar 16, 2016
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