#mammals

#mammals

Aging and damaged brain cells, or neurons, can cause memory problems and limit the brain's ability to recover from illnesses. Some scientists have posited that if we could just turn on the ability to make new neurons in the brain—a process called neurogenesis—some of these deleterious changes might be reversed.

Dinosaurs once dominated the ecosystem, leaving early mammals in a subordinate role, while new fossil studies reveal complex interactions between them and their environment.

In 1826, Mary Anning opened a Fossil Depot in Lyme Regis, contributing significantly to the field of paleontology.

Echidnas and another Australian oddity—the semi-aquatic platypus—are believed to have evolved from a common ancestor called Kryoryctes cadburyi that lived in Australia more than 100m years ago.