New video has emerged on Tuesday of the chaotic moments after Delta flight 4819 flipped over on the runway at Toronto Pearson International Airport.

This topsy-turvy behavior may result from the evolutionary journey bats took toward flight, said Tara Hohoff, a bat biologist and the coordinator of the Illinois Bat Conservation Program.

To document what happens, scientists will be monitoring a wide range of animals including nocturnal bats. Do they wake up, take flight, start foraging? No one knows exactly what will happen ...

The commonly named "flying!' squirrels and "flying" lemurs actually glide or parachute by means of a furred membrane, but only bats have the structural adaptations that allow for full powered flight.

Adults weigh 7-10 g (0.3-0.4 oz); females are slightly heavier than males. Because of their small size and nocturnal habits, bats are nearly impossible to identify in flight. However, when roosting, ...

but it is not known is they regularly prey upon smaller species of bats. The flight of the hoary bat is more linear, and less erratic than that of many bats, averaging 14-21 km/hr (9-13 mph), but ...