Zygodactyly occurs in the parrots, woodpeckers ( including Ma ( early Cretaceous ), 50 million years before the first identified zygodactyl fossils.
12.
All woodpeckers have " zygodactyl " feet-two toes in front, two behind-as an aid in clinging to tree bark.
13.
They are very finch-like but the feet are strong and the feet are zygodactyl, with two toes facing forward and two backward.
14.
Keel-billed toucans have zygodactyl feet ( or feet with toes facing in different directions ) two toes face forward and two face back.
15.
:: It seems like the di-and tri-configurations are more rare, and that syndactyl, pamprodactyl and zygodactyl should perhaps be included.
16.
All parrots are zygodactyl, with two toes at the front of each foot and two at the back, and all parrot eggs are white in color.
17.
Although " zygodactyl " is reasonably descriptive of chameleon foot anatomy, their foot structure does not resemble that of parrots, to which the term was first applied.
18.
Like other woodpeckers, the greater flameback uses its bill to dig out food from trees and its zygodactyl feet and stiff tail to provide support against tree trunks.
19.
Like the true woodpeckers, piculets have large heads, long tongues which they use to extract their insect prey and zygodactyl feet, with two toes pointing forward, and two backwards.
20.
Like the true woodpeckers, wrynecks have large heads, long tongues which they use to extract their insect prey and zygodactyl feet, with two toes pointing forward, and two backwards.
