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Natal homing, or natal philopatry, is the homing process by which some adult animals that have migrated away from their juvenile habitats return to their birthplace to reproduce. This process is primarily used by aquatic animals such as sea turtles and salmon , although some migratory birds and mammals also practice similar reproductive behaviors.
Homing abilities can be used to find the way back to home in a migration. It is often used in reference to going back to a breeding spot seen years before, as in the case of salmon. Homing abilities can also be used to go back to familiar territory when displaced over long distances, such as with the red-bellied newt.
Animal navigation is the ability of many animals to find their way accurately without maps or instruments. Birds such as the Arctic tern , insects such as the monarch butterfly and fish such as the salmon regularly migrate thousands of miles to and from their breeding grounds, [ 1 ] and many other species navigate effectively over shorter ...
Aug. 30—The spouse is in the midst of an epic RV trip on the Alaska Highway with his brothers, so my to-do list while I was on my own was going to be just shy of epic. On the lineup were such ...
Natal philopatry commonly refers to the return to the area the animal was born in, or to animals remaining in their natal territory. It is a form of breeding-site philopatry. The debate over the evolutionary causes remains unsettled. The outcomes of natal philopatry may be speciation, and, in cases of non-dispersing animals, cooperative breeding.
Previously, adults were thought to occur in two different fixed colors: green and brown. Now, some of them have been found to be able to change between the two. They can also change from lighter to darker, shift from patterned markings to pure colors and vice versa, and even display combinations of colors, brown/green being the most frequent.
In 2003, G. Fleissner and colleagues found iron-based receptors in the upper beaks of homing pigeons, both seemingly connected to the animal's trigeminal nerve. Research took a different direction in 2000, however, when Thorsten Ritz and colleagues suggested that a photoreceptor protein in the eye, cryptochrome , was a magnetoreceptor, working ...
Experiments to test this hypothesis, using the migratory European starling, indicated that the direction of migration could be manipulated by reflecting the angle of the Sun. [7] This effect was reproduced using homing pigeons. Although this study is of value in demonstrating mechanisms other than olfaction in bird navigation, it does not refer ...