Large butterfly-like insects known as Kalligrammatid lacewings, which fluttered through Eurasian fern- and cycad-filled woodland during the Mesozoic Era, have been extinct for more than 120 million years. But with new fossil ...
Most animals, including humans, have two copies of their genome—the full set of instructions needed to make every cell, tissue, and organ in the body.
Recent news headlines declared that one study suggested climate change will kill our sex drive and make people less likely to procreate.
High levels of vitamin D are linked to improved fertility and reproductive success, a study of wild sheep has found.
A new review provides intriguing insights on parthenogenesis, or virgin birth, in snakes.
University of Exeter ecologist Dave Hodgson works with other academics to manage a plant database called COMPADRE that brings together demographic information about plant species. This database has been used to show plant ...
For the first time, a litter of puppies was born by in vitro fertilization, thanks to work by Cornell University researchers.
In biology, free radicals are often regarded as the source of all evil and the major cause of molecular damage and aging. However, free radicals are indispensable as signaling molecules governing important functions in the ...
Phenomenon observed in worms suggests mothers are hardwired to sacrifice health to produce future generations
A newly discovered biological mechanism channels a mother's available energy - in the form of fat - straight to the reproductive system during stressful times, protecting future offspring at the cost of the mother's health.
A tiny fruit fly has the bizarre distinction of possessing the longest sperm of any animal—20 times the length of its own body and 1,000 times that of human sperm.