In 1981, scientists discovered that female fish exposed to high temperatures developed testes instead of ovaries. Since then, over 1,100 studies on different animal species, including 400 on freshwater fish, have found similar ...
Ecology
Oct 16, 2023
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38
Male pheromones just might be the fountain of youth for aging female animals' eggs, according to a new Northwestern University study.
Plants & Animals
May 19, 2022
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120
The sensory capacity of male spiders during mating may be higher than previously thought, a study in the open access journal Frontiers in Zoology suggests.
Plants & Animals
Oct 23, 2019
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118
Fossil discoveries from the Devonian rocks of Scotland and Australia first revealed that the earliest jawed fishes, the placoderms, reproduced using copulation in much the same way as sharks and rays do today.
Archaeology
Jul 19, 2018
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2
Evolution works in mysterious ways, especially when it comes to sex.
Plants & Animals
May 24, 2017
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315
The male reproductive organs of tomato plants can't stand the heat. When temperatures rise above 32 degrees Celsius for several consecutive days, their appearance changes and they produce less and less fertile pollen, leading ...
Plants & Animals
Dec 13, 2016
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8
(Phys.org)—A female cichlid hybrid fish has been observed to have grown male reproductive organs, impregnate itself and then to have offspring, a team of researchers in the U.K. are reporting in a paper published in the ...
For many animals, pheromones, which are chemical cues used for communication, guide important decisions such as whom to mate and whom to fight. New research from scientists at the University of Hawai'i - Mānoa's (UHM) Pacific ...
Plants & Animals
Sep 15, 2015
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22
Plants which used to have two types of male reproductive organs – to increase their chances for fertilisation – are reverting back to one type. And in some cases, they are becoming self-fertilising.
Plants & Animals
Jul 14, 2014
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0
A small tree or shrub found in mountainous Central and South American rainforests has a most unusual relationship with the birds that pollinate its flowers, according to a study reported in the journal Current Biology on ...
Plants & Animals
Jul 3, 2014
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0
