One of the most fascinating aspects of human life is how we choose our mates. Animals also choose their mates, sometimes with a great deal of care. Mating systems are important to understand because ...
The vast majority of animals need to breed to reproduce. But a small subset of animals can have offspring without mating. The process, called parthenogenesis, allows creatures from honey bees to ...
A new study has found that the chemical structure of queen pheromones in wasps, ants and some bees is strikingly similar, even though these insects are separated by millions of years of evolution and ...
Human women typically go through menopause between ages 45 and 55, when they undergo hormonal changes that cause them to stop being able to reproduce. But they're not the only ones in the animal ...
The peppered moth is an iconic example of Charles Darwin’s theory of evolution by natural selection. For centuries peppered moths (Biston betularia) were common in the forests around Manchester, ...
"We didn't know what we were seeing. We had attributed it to stored sperm," he said. "I guess sometimes truth is stranger than fiction." Virgin births have been observed in other reptiles before, ...
A genetically manipulated mouse pup born from an unfertilised egg survived to adulthood and reproduced, demonstrating a type of reproduction that was thought to be impossible in mammals. In many ...
RBSE 8th Marksheet Download 2025: The Rajasthan Board (RBSE) Class 8 marksheet 2025 PDF is available for download on the official websites- rajshaladarpan.nic.in , rajpsp.nic.in . A total of 12.64 ...
As Americans consider the possible uses of genetic engineering in animals, their reactions are neither uniformly accepting nor resistant; instead, public reactions vary depending on the mechanism and ...
All vertebrate and invertebrate animals have an innate immune system, but adaptive immunity is thought to be a uniquely vertebrate feature 3. Underlying adaptive immunity are variable, clonally ...
Srinagar, Oct 12: The Jammu and Kashmir Government has issued a new order changing the way Class 8th annual examinations will be held across the Union Territory. The move aims to make assessments more ...