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Lord of the flies: competition breeds a better ejaculate

August 20, 2019

When more rivals are around, they create and add extra protein to their seminal fluid making it extra…
In sexual conflict, ant queens prevail in evolutionary arms race

July 30, 2019

It’s hidden from sight, but there’s an epic battle of the sexes raging in the leafcutter ant species…
For anemonefish, male-to-female sex change happens first in the brain

July 24, 2019

The anemonefish is a gender-bending marvel. It starts out as a male, but can switch to female when…
Parasites hinder reproduction for seabird mothers

July 23, 2019

A study by the University of Liverpool and Centre for Ecology & Hydrology (CEH) has found that parasites reduced female…
First Proof-of-Concept Demonstrates Genetic Sex Selection in Mammals

July 11, 2019

Certain plants, insects, crustaceans and fish possess the uncanny ability to change the sex of their offspring before…
Competition leads to fathers who produce more male sperm

July 3, 2019

New research led by The University of Western Australia has shown that the social conditions that a male…
Sex, lice and videotape

June 11, 2019

A few years ago, Scott Villa of Emory University had a problem. Then a graduate student at the…
Egyptian Fruit Bats Trade Food for Sex

May 24, 2019

Female scroungers form bonds with particular male producers and exchange mating for nourishment, TAU researchers say. Female Egyptian…
How Men Continually Produce Sperm — and How that Discovery Could Help Treat Infertility

February 6, 2019

The production of sperm — otherwise known as spermatogenesis — generates more than 1,000 sperm per second in…
Climate change and infertility – a ticking time bomb?

February 5, 2019

Rising temperatures could make some species sterile and see them succumb to the effects of climate change earlier…
Cilia beat to an unexpected rhythm in male reproductive tract, study in mice reveals

January 15, 2019

Waves of undulating cilia drive several processes essential to life. They clear debris and mucus from the respiratory…
Medically assisted reproduction does not increase birth risks

January 15, 2019

Couples considering medically assisted reproduction (MAR) because they have difficulties conceiving naturally, have feared that they could do…
How sperm find their way

November 27, 2018

Researchers have found that a protein in the cell membranes of sperm plays a key role in how…
When Boy Fish Build Castles to Impress Girl Fish, Boy Genes Get a Rise

November 26, 2018

Call it instinct, but something, perhaps programs in their genes, compels some animals to behave in striking ways. Take…
Baby’s tears and mom’s libido

November 6, 2018

A substance in young mice’s tears makes female mice more likely to reject male sexual advances. This research…
Alligators and timing shed light on reproductive disorders

October 18, 2018

Researchers from the University of Georgia have discovered that timing of exposure is a key factor in how certain…
Female guppy fish choose sperm from preferred males

October 4, 2018

Researchers from The University of Western Australia have found that female guppy fish are highly selective when it…
Egg cell seeks sperm

October 2, 2018

Through clever partner selection, animals can increase the future success of their offspring. With some species, this process…
Sex in plants requires thrust

September 28, 2018

Plant sex relies on a combination of prodding and a lot of communication and guidance suggests a study…
Research into genetics of mosquito reproduction could help stop spread of disease

September 4, 2018

Female mosquitoes bite us because they need our blood to produce eggs. During this feeding process, infected mosquitoes…
How does a sperm meet an egg?

August 31, 2018

What kind of research do you think is being carried out at the Misaki Marine Biological Station? Fish…
Research reveals molecular details of sperm-egg fusion

August 8, 2018

The fusion of a sperm cell with an egg cell is the very first step in the process…
Muir Woods research works to understand how plants have sex

June 28, 2018

When Melody Sain tells somebody about her research, they usually perk up. “Sex is just interesting,” she says.…
How turning down the heat makes a baby turtle male

May 23, 2018

Boy or girl? For those who want to influence their baby’s sex, superstition and folk wisdom offer no…
Learn how humans faithfully pass along genetic information

May 22, 2018

How the human genome gets transferred to each generation of offspring, and why things sometimes go wrong, are…
Deep-sea fish use hydrothermal vents to incubate eggs

February 13, 2018

Some deep-sea skates — cartilaginous fish related to rays and sharks — use volcanic heat emitted at hydrothermal vents to incubate…
Team Uncovers the Physiology Behind the Hour-long Mating Call of Midshipman Fish

January 25, 2018

According to the Guinness World Records, the longest any person has held a continuous vocal note is just…
Why are there males and females? Algae helped explain this bizarre phenomenon

December 7, 2017

Why are there two sexes? What determined that two kinds of gametes are needed to create a new…
Rival sperm and choosy eggs: when sperm compete, eggs have a choice

November 10, 2017

The delicately mannered dance between discerning eggs and vying sperm is more complicated than scientists once believed, and…
How Chromosomes ‘Cheat’ for the Chance to Get Into an Egg

November 3, 2017

Each of your cells contains two copies of 23 chromosomes, one inherited from your father and one from…
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