The animal kingdom is a vast tapestry woven with the threads of evolution, where survival and reproduction dictate the patterns that emerge. Among these patterns, one of the most intriguing and ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The idea that most biologically male members of a species are ...

Despite a common narrative that male mammals tend to dwarf female ones, fewer than half of mammalian species display that pattern, a new study suggests. By Emily Anthes Female elephant seals are not ...

Animals show different cancer levels based on how they share, compete, and care. Social behavior shapes cancer risk across ...

Brontotheres, or “thunder beasts” – an extinct lineage of herbivorous rhinoceros-like mammals (though more closely related to horses) – evolved their massive multi-ton body sizes as a way to survive ...

Anyone who has witnessed majestic whales or lumbering elephant seals in person would be forgiven for associating ocean life with unlimited size in mammals, but new research reveals that mammal growth ...

Fifty million years ago, whales were four-footed, tailed land mammals about the size of wolves. Over the next 12 million years, these terrestrial whales evolved into fully aquatic animals, complete ...

Thirteen thousand years ago Southern California was crawling with enormous mammals — all of which are extinct today. There were massive mammoths three times bigger than modern-day elephants, giant ...

This is a preview. Log in through your library . Abstract Body size in animals is an important trait affecting species niche differentiation and restricting similarity. Using camera-trap data over ...