An innovative technique from Cornell University researchers finds seminal fluid protein transferred from male to female fruit flies during mating changes the expression of genes related to the fly's circadian clock.
Plants & Animals
Jan 30, 2023
0
9
A team of researchers from Bariloche Atomic Center and Fundación Instituto Leloir—IIBBA—CONICET, both in Argentina, has found that male fruit flies inject females with a chemical while mating that makes them sleep after ...
Some species of shark return to the same breeding grounds for decades at a time, and live longer than previously thought, scientists studying the animals off Florida say.
Ecology
Dec 16, 2022
0
4
New research has revealed that sexual arousal leads to an immediate preference in short-term mating in men over more long-term committed relationships, such as marriage.
Social Sciences
Dec 16, 2022
0
54
Male spotted bowerbirds (Ptilonorhynchus maculatus) build and defend a structure of sticks and straw—the bower. They decorate these nests with colorful objects to attract mates during the breeding season. Certain non-resident ...
Plants & Animals
Nov 30, 2022
0
33
If you see a great bustard (Otis tarda) in the wild, you're unlikely to forget it. Massive, colorful, and impossible to mistake, they are the heaviest birds living today capable of flight, with the greatest size difference ...
Plants & Animals
Nov 22, 2022
1
1567
Many estimates of how strongly traits and diseases share genetic signals may be inflated, according to a new UCLA-led study that indicates current methods for assessing genetic relationships between traits fail to account ...
Biotechnology
Nov 17, 2022
0
26
In much of the United States, there is a twice-yearly shift in timekeeping between standard time and daylight saving time, or DST, which delays both sunrise and sunset to make mornings darker and evenings brighter. Recently, ...
Ecology
Nov 2, 2022
0
83
Understanding the family of cellular on/off switches known as G-proteins is important because these proteins control a lot of the communication between cells in the human body and beyond. A new study from the University of ...
Cell & Microbiology
Oct 21, 2022
0
2
We see evolution all around us, constantly, in every living thing. Yet in the deep oceans we find a number of "living fossils" reminiscent of creatures from prehistoric times.
Plants & Animals
Oct 10, 2022
0
58
In biology, mating is the pairing of opposite-sex or hermaphroditic organisms for copulation and, in social animals, also to raise their offspring. For animals, mating methods include random mating, disassortative mating, assortative mating, or a mating pool.
In some birds, for example, it includes nest-building and feeding offspring. The human practice of making domesticated animals mate and of artificially inseminating them is part of animal husbandry.
Copulation is the union of the sex organs of two sexually reproducing animals for insemination and subsequent internal fertilization. The two individuals may be of opposite sexes or hermaphroditic, as is the case with, for example, snails.
This text uses material from Wikipedia, licensed under CC BY-SA
