Before the evolution of modern elephants, their early relatives included several species that often shared their environment and adapted to feeding on different plants. This image depicts a ...

For a small Amazonian frog called Rhinella proboscidea, death is no impediment to sex.The males form huge mating balls in which dozens of individuals compete to fertilise a female. These ...

Henry Fairfield Osborn, Adaptive Radiation and Classification of the Proboscidea, Proceedings of the National Academy of Sciences of the United States of America, Vol. 7, No. 8 (Aug. 15, 1921), pp.

THROUGH the discoveries in the Oligocene1 of the Fayûm Mœritherium and Palæomastodon have become famous as two of the earliest, and more or less direct, stages in the ancestry of the elephants.