(Phys.org)—For a long time, biologists have considered sex to be an inherent trait of multicellular life, while microbial eukaryotes were considered to be either optionally sexual or purely clonal. From this perspective, ...
Weaving through the aisles of his greenhouse in northern France, Jean-Claude Terlet, a retired farmer who grows tomatoes for local markets, seems to be brimming with energy.
Business
Aug 24, 2018
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718
The first flower to appear along the path of plant evolution, during the time of the dinosaurs, was a hermaphrodite with petal-like organs arranged in concentric circles, researchers said Monday.
Plants & Animals
Aug 1, 2017
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644
Evolution works in mysterious ways, especially when it comes to sex.
Plants & Animals
May 24, 2017
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315
Previously, Daiqin Li and colleagues at the National University of Singapore found that the male orb web spider loses its sex organ, called a palp, due to it breaking off during sex because it allowed the male to continue ...
A team of researchers from Japan, Brazil and Switzerland has found evidence that suggests female penis-like appendages in two types of cave insects evolved independently. In their paper published in the journal Biology Letters, ...
(Phys.org) —A combined team of researchers from Nagoya University and the University of Tokyo has discovered that a certain type of fern plant communicates with others of its kind using pheromones as a means of choosing ...
(PhysOrg.com) -- Researchers have known for some time that the male sex organ, called a palp, in orb-web spiders is often broken off during copulation with females; what hasn’t been so clear is why. Now, new research ...
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 own sex chromosome, the ...
Biotechnology
Jun 4, 2015
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42
(Phys.org)—A small team of researchers from Dalhousie University, the University of Massachusetts and Tufts University has learned more about the ways that cetaceans copulate by using parts from dead sea animals to simulate ...
