Berlin, (Pakistan Point News – 23rd August, 2016) : German experts have revealed that some birds sleep during the long flights, but their sleeping duration is very short. Scientists have installed a very small device to read the mind of the Great Frigate birds which note the brain activity of birds during flight.
Some Birds Sleep During Long Flights, Said German Experts
Syeda Siddra Sumreen Zahra (@syeda_siddra) 9 years ago
