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Animals across the world are choosing to live under the cover of darkness to avoid any contact with humans.
The shift has been observed in six continents, and could dramatically alter animals' reproductive habits, survival rates and food chains worldwide.
Researchers - Habits - Species - GPS - Tracking
Researchers observed the habits of 62 species, using GPS tracking and motion-activated cameras to track their behaviour in relation to human activity.
Kaitlyn Gaynor of the University of California, Berkeley and her team conducted a large-scale analysis of 76 separate animal studies from around the world.
PhD - Candidate - Wildlife - Ecology - Conservation
The PhD candidate in Wildlife Ecology and Conservation aggregated the data from the studies to look into the changes in animal behaviour.
They focused on 62 mammals from six continents, each at least 2.2 lbs (1kg) in body size.
Researchers - Cent - Increase - Nocturnality - Level
According to the researchers, 83 per cent of those studied showed a marked increase in nocturnality when there was a high level of human disturbances nearby.
Ms Gaynor and her team categorised a range of activities as 'human disturbances', including hunting, hiking, and agriculture.
Findings - Animals - Activity - Time - Day
The latest findings show animals typically avoid human activity by shifting the time of day when they are active – rather than physically moving to a less populated area.
The trend is not limited to prey species, either.
Carnivores - Behaviours - Humans - Researchers
Even apex carnivores retreated into more nocturnal behaviours when humans were present, the researchers discovered.
Researchers dubbed mankind 'super predators', due to the gravity of their impact on the species around them.
Research - Science - Shift - Behaviours - Effect
According to the research, which was published in Science, the shift to nocturnal behaviours could have a profound effect on animals worldwide.
Mammals which suffered long-term disturbances from humans were found to have lower reproduction rates and lower juvenile survival rates.
Researchers - Changes - Survival - Species - Animals
Researchers believe these changes, which could threaten the survival of the species, are due to the animals' inability to adapt to their new...
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