primates’ closest living relatives?

Scientists have thought for a long time that tree shrews are the closest living relatives of primates. More recently, use of DNA data together with morphological comparisons suggested that colugos are also very closely related to apes, monkeys (& us). These so-called 'flying' lemurs use extensive flaps of loose skin, stretched between their outspread front and back […]

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“Punk eek” and speciation

The concept of punctuated evolution – bursts of evolutionary novelty separated by long periods of stasis – was first proposed by Stephen Jay Gould & Niles Eldredge in 1972. Since then, there's been an ongoing debate among evolutionary biologists about how significant ‘punk eek' could be in the evolution of new species. (Remember that they aren't […]

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