Dactyly
Videos
In biology, dactyly is the arrangement of digits on the hands, feet, or sometimes wings of a tetrapod animal. It comes from the Greek word δακτυλος = "finger".
Human foot with partial simple syndactyly.
Tridactyly (Mikhail Tal)
Didactyly
Monodactyly
Galliformes
Videos
Galliformes is an order of heavy-bodied ground-feeding birds that includes turkeys, chickens, quail, and other landfowl. Gallinaceous birds, as they are called, are important in their ecosystems as seed dispersers and predators, and are often reared by humans for their meat and eggs, or hunted as game birds.
Despite its distinct appearance, the wild turkey is actually a very close relative of pheasants
Palaeortyx skeleton, Muséum national d'histoire naturelle, Paris
Female (left) and male common pheasants: Sexual dimorphism is conspicuous in this species, one of the most apomorphic gamefowl