The amount of sperm released decreased sharply with each mating during a single day, reducing the males' fertilization rate.

For any animal, releasing sperm cells requires a bit of time and energy. Using up so much energy can keep them from the other ...

Working out the kinks of mating in the animal kingdom helps to gain insights into the survival of species. Among animals that ...

Japanese rice fish – also known as medaka ( Oryzias latipes) – are a small, unassuming species that live wild in the ...

Kitty Trice speaks to bloodstock manager and head of nominations Matthew Sigsworth about a star-studded cast of mares ...

Researchers have uncovered a daily mating capacity for medaka, providing important insights into the relationship between the cost of gamete production and sexual selection.

Obviously this is too wide a category, at $60,000 and upwards, to be always comparing like with like. And really those at the ...

As these gametes are difficult to collect, the number of sperm released and the fertilization rate during successive matings had remained a mystery,” Yuki Kondo, a study co-author and an ...

Working out the kinks of mating in the animal kingdom helps to gain insights into the survival of species. Among animals that have multiple partners ...

Emulation genetics seem to bring an optimum level of intelligence, fertility and production to the table, along with a unique ...