“Rainforests have at all times been considered too laborious for folks to have tackled that early on,” Dr Langley mentioned.
“The assets are fairly tough to get at, the animals which can be there within the bushes are tough to get, they aren’t the big animals you get within the savannahs.
“Most individuals have beforehand thought (people) had gone round rainforests till a lot later.”
The researchers discovered proof of extended human settlement within the area, evidenced by the big variety of bones from monkeys which had been butchered by these early people.
“Searching monkeys could be very tough – they reside within the bushes far above the place people are, they’re very quick, very agile and really good,” Dr Langley mentioned.
“They’re not the type of animal the place you possibly can simply seize them, it takes fairly refined expertise to rise up to them and hunt them.”
Dr Langley is a specialist in analysing historic bone instruments, and checked out a number of small bone spikes believed to have been used as spear or arrow heads.
It seems the traditional people additionally used canine tooth from the monkeys they hunted as instruments, turning them into pointed instruments for piercing and slicing.
The folks transferring by the Sri Lankan rainforest 45,000 years in the past had been trendy people, that means they might have been bodily the identical as folks residing right now.
Dr Langley mentioned the findings confirmed a inhabitants of individuals utilizing human ingenuity to get probably the most out of a harsh setting with none of the advantages of the next 45,000 years of technological advances.
“The advantage of trendy people is we’re very versatile in our behaviours, so put us in a state of affairs and we’ll work out in a short time the best way to reside there,” she mentioned.
“They’ve arrived [in the region] early on and so they’ve caught round, in order that they’ve labored out the best way to make a residing there and never seen any purpose to depart, in order that they appear to be fairly snug.”
Along with Dr Langley and the Griffith staff, the venture concerned researchers from Sri Lanka’s College of Sri Jayewardenepura, in addition to a world group from universities together with Oxford College and the College of Queensland.
Stuart Layt covers well being, science and expertise for the Brisbane Occasions. He was previously the Queensland political reporter for AAP.