Feeding stingrays is leading to behavioral changes including unwanted pregnancies.
It’s amazing the effects humans can have on other forms of life.
Findings from a study conducted by the Guy Harvey Research Institute have recently been released.
The researchers wanted to see how human influence was affecting marine wildlife at Stingray City in the Cayman Islands, where travelers are permitted to swim with and feed the creatures. They found that the behavior of the stingrays radically changed.
Females began getting pregnant year round rather than during the standard mating period.
Stingrays shifted their schedules, looking for food during the day instead of at night, since humans were more likely to be handing out goodies. The stingrays also became more outgoing.
Rather than being solitary which is usually the norm, the creatures stayed in groups and showed increased aggressiveness with one another.
They also went back to their normal schedules during the tourist offseason.
In another example of adaptation, scientists analyzed a human-accustomed Asian zoo elephant’s sounds, and realized he spoke several words in Korean. His vocabulary consisted of 5 words that translated to 'no', 'lie down', 'sit down', 'hello', and 'good'.