The parrot 'serves' science for 30 years has passed away

Alex, the parrot has the ability to count up to 6, identify colors, even express dissatisfaction with being tested, has passed away. For 30 years, it helped scientists find out about the brain of birds.

The cause of Alex's death is unknown. According to Irene Pepperberg, a researcher at Brandeis University (USA), the average life expectancy of an African gray parrot is 50. Studies conducted at Alex have enabled a revolution in knowledge. about the brain of birds.

Pepperberg bought it in 1973. Alex learned English enough to identify 50 different things, 5 colors and 5 shapes. It can count up to 6 and express wishes, as well as dissatisfaction with scientific trials.

(Photo: sciam)

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