Sharks, rays, and other chondrichthyans have evolved a remarkable range of reproductive strategies, allowing them to thrive for hundreds of millions of years. Two particularly unusual ...

On the flip side, parthenogenesis eliminates the male contribution by sourcing all genetic information from a single parent. Animals that rely exclusively on parthenogenesis to reproduce ...

Why do some ancient animals become fossils while others disappear without a trace? A new study from the University of Lausanne, published in Nature Communications, reveals that part of the answer ...

Reproduction in animals varies from species to species. Some types of reproduction, like parthenogenesis, are more unusual than others. This reproductive method requires only one individual rather ...

Scientists have two main theories. The aquarium says Yoko's birth could be the result of either delayed fertilization or parthenogenesis, a rare form of asexual reproduction — in which offspring ...

Facultative parthenogenesis, which is what is being seen in these common smooth-hound sharks, allows an animal to reproduce both sexually and asexually, depending on the circumstances. Females can ...

In a surprising development in marine biology, recurrent parthenogenesis has been documented for the first time in the shark Mustelus mustelus, also known as the common smooth-hound. This discovery, ...

“A litter produced by sexual reproduction is usually much larger than one produced via parthenogenesis if it’s an animal that gives birth to litters,” Chapman said. “And you will often see ...

"Nearly 300 native plant and animal species in the U.S. are in rapid decline because of feral swine, and many of the species are already at risk," said USA Today. "The swine also carry at least 40 ...

This unusual phenomenon, known as parthenogenesis or 'virgin birth', continues to perplex scientists and captivate nature enthusiasts alike. Produced by Natalia Guerrero & Sanjana Bhambhani ...

Some female birds, reptiles and other animals can make a baby on their own. But for mammals like us, eggs and sperm need each other. Parthenogenesis could be the future for this California condor ...