Males of the species Drosophila melanogaster pack thousands of almost two-millimeter-long sperm cells into significantly smaller storage organs. A new study reveals how they move in an orderly manner ...

Funny animal compilation videos deliver nonstop laughs, featuring silly pet moments and unexpected animal encounters from ...

Earth’s earliest animals may have held evolution back because they reproduced asexually, creating low-competition communities that changed very little over time. When environmental pressures pushed ...

Some animals are capable of parthenogenesis, a reproductive process in which females produce offspring without fertilization. This phenomenon has been documented in reptiles, sharks, birds, and ...

Here’s what you’ll learn when reading this story: Chondrichthyan fishes—a group that includes rays, skates, chimaeras, and sharks—are thought to have energy intensive reproduction cycles due in no ...

Cities profoundly shape how animals interact with one another. A new comprehensive review by researchers at Bielefeld University shows that urbanisation alters animal social behaviour – from mate ...

The evolutionary origin of sperm can be traced back to a single-celled ancestor of all living animals. Almost all animals reproduce by having a single-celled stage of their life cycle, involving two ...

In Telford's Exotic Zoo, life found a way. A casque-headed iguana has given birth to eight babies at the Shropshire wildlife park – without any contact with a male, via a phenomenon called ...

Animal reproduction encompasses the full sequence from gamete formation through fertilisation, embryonic development and parturition. In farm and companion species alike, natural breeding is ...

Dogs are called man's best friend, but they are also often friendly with other animals. To provide an apt example, an Instagram video shows how a Golden Retriever named Baker attracts all kinds of ...

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 ...