Sperm Whale. Physeter catodon . Physeter macrocephalus . Whale, Sperm . The species Physeter catodon (also called Physeter macrocephalus), in the family Physeteridae. The common name is derived from the milky wax substance in its head (spermaceti). The species also produces an intestinal secretion AMBERGRIS, which was previously used in perfumes. The sperm whale is the largest toothed MAMMAL in the world. . 1.00
Megalencephaly. Megacephaly . Megalocephaly . Macrocephalies . Megacephalies . Megalencephalies . Megalocephalies . Macrocephaly . A congenital abnormality in which the occipitofrontal circumference is greater than two standard deviations above the mean for a given age. It is associated with HYDROCEPHALUS; SUBDURAL EFFUSION; ARACHNOID CYSTS; or is part of a genetic condition (e.g., ALEXANDER DISEASE; SOTOS SYNDROME). . 0.67
Hemimegalencephaly. Unilateral Macrocephaly . Unilateral Megalencephaly . Hemimegalencephalies . Macrocephalies, Unilateral . Macrocephaly, Unilateral . Megalencephalies, Unilateral . Megalencephaly, Unilateral . Unilateral Macrocephalies . Unilateral Megalencephalies . Rare MALFORMATIONS OF CORTICAL DEVELOPMENT, GROUP I characterized by the enlargement of one side of the brain. It is associated with seizures, partial paralysis, and mental retardation. . 0.51
Mole Rats. Mole-Rats . Molerats . Mole Rat . Mole-Rat . Molerat . Rat, Mole . Rats, Mole . Cryptomys . Heterocephalus . Any of several burrowing rodents of the families MURIDAE and Bathyergidae, found in eastern Europe, Africa, and Asia. They have short limbs, small eyes with permanently closed lids, and no tail. Three genera SPALAX (Muridae), Heterocephalus (Bathyergidae) and Cryptomys (Bathyergidae) are used frequently as experimental animals in biomedical research. (From Walker's Mammals of the World, 6th ed) . 0.48
