American zoologist Laurie Marker has been collecting and storing specimens in a cheetah sperm bank in Namibia for 35 years, ...

In the animal kingdom, pregnancy rarely follows the rules, with many species being pregnant for a year or more.

Experts worry cheetahs may one day be on the brink of extinction and need artificial reproduction to save them. View on ...

Large litters are not uncommon in the animal kingdom, but some species give birth to thousands, and even millions, of young.

Scientists trace the origins of human kissing back over 20 million years to ancient apes who first showed gentle ...

Animal mothers exhibit remarkable resilience and ingenuity when raising large litters. Species like the tailless tenrec and ...

Animals can be divided into groups. We call this 'classification'. Classification allows us to group animals together depending on their similarities and differences. Animals are divided into two main ...

Animal biotechnology is a branch of biotechnology in which molecular biology techniques are used to genetically engineer (i.e. modify the genome of) animals in order to improve their suitability for ...

Planet earth is quite an amazing place, because it’f full of life. From creatures that are so small we can’t even see them, to creatures that are so huge they could squash a whole house. Each ...

Animal physiology is the scientific study of the life-supporting properties, functions and processes of animals or their parts. The discipline covers key homeostatic processes, such as the regulation ...

Oct. 19, 2025 Groundbreaking research shows that as men age, harmful genetic mutations in sperm become more common—not just from random chance, but because some are naturally favored. Advanced ...