The wing of the bat is longer than the head and body combined and 65% of its wingspan is made of the third digit.

[8] The greater bulldog bat's range stretches from Mexico to Northern Argentina and also includes most Caribbean islands.

[7] While vast, its range is also patchy as the bat is limited to mostly well-watered lowland and coastal areas as well as river basins.

In Guianas and the Amazon Basin, the bats are small and dark and often lack the pale mid-dorsal stripe.

In eastern Bolivia, southern Brazil and northern Argentina bats tend to be large and pale, more so than the other subspecies.

[7] In Trinidad, bulldog bats rest in hollow trees like silk-cotton, red mangrove and balatá.

Female bulldog bats stay together in groups while roosting and tend to be accompanied by a resident male.

Females associate with the same individuals in the same location for several years unaffected by changes in resident males and movements of the group to different roosts.

[3] During the dry season, bats will primarily feed on fish as well as crabs, scorpions and shrimp to a lesser extent.

A bulldog bat will fly high in the air and in a circular direction when searching for prey.

[14] The bulldog bat may also search by dragging its feet across the water surface, a behavior known as raking.

[14] Greater bulldog bats emit echolocation signals that are either at constant frequency (CF), frequency-modulated (FM) or a combination of the two (CF-FM).

[7] For females, pregnancy occurs from September until January, and lactation starts in November and continues until April.