Who were too small to fly.
Answers
Explanation:
verification.
A number of animals are capable of aerial locomotion, either by powered flight or by gliding. This trait has appeared by evolution many times, without any single ancestor. Flight has evolved at least four times, in the insects, pterosaurs, birds, and bats. Gliding has evolved on many more occasions. Usually the development is to aid canopy animals in getting from tree to tree, although there are other possibilities. Gliding, in particular, has evolved among rainforest animals, especially in the rainforests in Asia (most especially Borneo) where the trees are tall and widely spaced. Several species of aquatic animals
Answer:
The smallest bird is the bee hummingbird (Mellisuga helenae) of Cuba and the Isle of Youth. Males measure 57 mm (2.24 in) in total length, half of which is taken up by the bill and tail, and weigh 1.6 g (0.056 oz) Females are slightly larger. This is believed to be the lowest weight limit for any warm blooded animal.