Which group of mammals has the more 'primitive' reproductive strategy -- marsupials, with their short gestation periods, or humans and other placental mammals, which have long gestation periods? For ...

WASHINGTON (Reuters) - Its fangs are not what makes the newly identified Indonesian frog species Limnonectes larvaepartus unique on Earth. The way it makes babies does. This little amphibian from the ...

Researchers have uncovered an unusual survival strategy in Iberian harvester ants that turns basic biology on its head: The queens can produce eggs that develop into two different ant species. A team ...

Most male yellow crazy ants carry two separate sets of DNA, resulting from sperm and egg cells that don’t mix their genetic material after fertilisation. This means the males are chimeras – ...

Two novel hypotheses have been proposed that address the “two-fold cost of sex”: one of the biggest enigmas in the evolution of sexual reproduction. The evolution of sexual reproduction in living ...

Male yellow crazy ants (Anoplolepis gracilipes) are chimeras of two separate genetic lineages, researchers report in a study that reveals a unique mode of reproduction in this species – one previously ...

In the debate over human origins and the nature of sexual reproduction, religious and scientific perspectives often diverge. The Bible claims man came first, with women derived from man’s rib. Yet, ...

Yellow crazy ants break the rules of reproduction. Every male ant contains separate populations of cells from two distinct genetic lineages, making them “chimeras,” researchers report in the April 7 ...

Researchers meticulously examined the gametogenesis of budding yeast, a process involving meiosis and spore formation, using live imaging techniques. Their findings revealed that during sporulation, ...