Animals such as mammals, birds and reptiles lose their fear of predators after they start encountering humans, experts say. The scientists found that contact with humans led to a rapid loss of animals' anti-predator traits. Animals showed immediate changes in anti-predator responses in the first generation after contact with humans. The researchers also found that domestication altered animals' anti-predator responses three times faster than urbanisation, while captivity resulted in the slowest changes. 'Conserving the variety of anti-predator responses that exist within a population will ultimately help sustain it,' the experts say in their research paper.

Source: Daily Mail September 22, 2020 18:02 UTC