Study finds parrots use their heads as a 'third limb'

No vertebrate (fish, mammal, bird, reptile, or amphibian) has ever had an odd number of limbs. Despite this "forbidden phenotype," some animals seem to use other body parts as a third or fifth "limb" to move from one place ...

How animals repurpose genes to develop both limbs, eyes

The last common ancestor of cephalopods and vertebrates existed more than 500 million years ago. In fact, a squid is more closely related to a clam than it is a to a person. Even so, the two lineages independently evolved ...

Fingerprint patterns are linked to limb development genes

In the most comprehensive analysis to date, researchers found that the shapes of fingerprints—whether they are circular, wavy, or winding—are influenced by the genes responsible for limb development instead of skin patterning. ...

Scientists identify essential factors for limb formation

Scientists at the Centro Nacional de Investigaciones Cardiovasculares (CNIC), working in partnership with researchers at the Institut de Recherches Cliniques de Montréal (IRCM) in Canada, have identified Meis transcription ...

Why frogs can't regenerate lost limbs like axolotls

In Lake Xochimilco of central Mexico dwells a rare salamander, the axolotl (Ambystoma mexicanum). In the wild, the axolotls do not metamorphose: adults very much resemble their larval counterparts and keep the external gills ...

Mantis shrimp larvae punch just like mom and dad

Adult mantis shrimp pack an explosive punch that can split water, but no crustacean emerges fully formed. Minute larvae can undergo six or seven transformations before emerging as fully developed adults and limbs and maneuvers ...

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Limb

Limb can refer to:

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