Congenital Conditions

Animals

A puppy with a tail on its forehead usually has a rare congenital condition that results in a tail-like tissue mass growing near the head. This is not an extra tail in the usual...

animal-care

A six-legged dog typically has an additional limb resulting from congenital conditions, trauma, or surgical reconstruction. This configuration can occur through duplication of a...

health-explanations

Two-headed humans, while extremely rare, are a documented biological variation rather than a myth. This explainer describes what it means to be a two-headed individual, the medi...

rabbits

A rabbit with no ears typically refers to an animal that has been born without external ear flaps or has lost them due to injury, illness, or surgical removal. This absence can...

health

A query for a two-faced cat is usually shorthand for feline diprosopus, a rare congenital condition where facial structures are duplicated or asymmetrically formed. Rather than...