While migrating they feed in the air on insects, and they usually travel in daylight.
As adults, long-toed salamanders often go unnoticed because they live a subterranean lifestyle digging, migrating, and feeding on the invertebrates in forest soils, decaying logs, small rodent burrows or rock fissures.
The primary motivation for migration appears to be food; for example, some hummingbirds choose not to migrate if fed through the winter.
If blue sharks are following and feeding on vertically migrating prey while in the Gulf Stream, one would expect the mean depth of the sharks to closely match that of their prey.
The rest migrate to feed.
The scientists say they do not know if the sharks migrate for feeding or breeding.
The released amoebas extend their pseudopods, and, as individuals again, they migrate to feed.
Whale sharks migrate to feed and possibly to breed.
Because only mammals can sustain infection, T. cruzi infection should be low in bugs collected from chicken coops [27] if the bugs do not migrate and feed in other habitats.
This is important because many commercially and ecologically important species migrate between feeding and spawning grounds.
