Thousands and thousands of years in the past, the species of mankind that when spent their lives swinging across the timber started to begin strolling on the bottom as an alternative.
And it seems as if the identical means of evolution has an opportunity of occurring once more, based on new analysis.
Species of monkeys and lemurs which have spent hundreds of years dwelling within the timber have been spending increasingly time strolling round on the forest flooring as a consequence of circumstances like deforestation and local weather change, the Each day Star studies.
A examine based mostly on greater than 150,000 hours of observations of 47 tree-dwelling primate species dwelling throughout virtually 70 websites in Madagascar and the Americas has proven the change in habitat is a worldwide development.
Giuseppe Donati from Oxford Brookes College says the the tree-dwelling animals are being pressured to the bottom to hunt shade and water as temperatures within the forest proceed to rise.
He advised New Scientist : "In most tropical nations the place these species dwell, people log the forest.
"This creates gaps and it opens the cover of the forest. That causes a rise in temperature."
He added that deforestation "is working along with local weather change" to drive the animals into searching for out new locations to dwell.
One species that Giuseppe recognized was the bamboo lemur from Madagascar. Like most species of lemur, they spend most of their time up within the timber.
However in south Madagascar, the place the forest cover is changing into more and more thinner, he says bamboo lemurs have began grazing on the grasslands – “a bit like little cows”.
Whereas it isn't 100% confirmed what triggered our ancestors to ditch the timber for good and begin strolling round on land, the change in habitat is broadly believed to have been pushed by local weather change.
However these adjustments are occurring in a short time now in comparison with the pure fluctuations within the Earth's local weather traditionally, and monkeys will battle to adapt with these.
Timothy Eppley, from the San Diego Zoo Wildlife Alliance, says: "Not one of the species we studied are prone to absolutely transition to a terrestrial way of life. It’s merely not a viable long-term final result to occur in such a brief time period.”
He says if tree-dwelling monkeys like lemurs are to be saved from the brand new mass extinction presently killing the planet's biodiversity, "we have to actively defend the forest habitat that we presently have".
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