GPS tracking reveals fast east-west flights lead to a mismatch between birds’ internal time and the sun’s position, skewing their sense of direction.
GPS tracking reveals fast east-west flights lead to a mismatch between birds’ internal time and the sun’s position, skewing their sense of direction.
Some of the world’s biggest bats are getting smaller 
A striking Mars cloud may be born from surprising physics 
Three-quarters of NFL football players may end up with CTE 
Why do flamingos dance while they eat? This scientist found out 
Comets probably didn’t deliver life’s building blocks to Earth 
How brain implants turn thoughts into speech 
Seabirds get jet lag, too — and it can throw them a bit off course 
Higher Ground: How New York is raising a park to hold back the sea 
Afghanistan opium production jumps fivefold as farmers find ways round Taliban ban 
USA: ‘Rights Can Be Hollowed out One Procedure at a Time until They Survive in Name Only’