Mammals terminology

Mammalia

Class of animals characterized by having mammary glands and hair.

Prototheria

Subclass of egg-laying mammals with mammary glands that lack nipples.

Monotremata

Order of monotremes including duck-billed platypus.

Theria

Subclass that includes viviparous mammals with mammary glands that have nipples.

Metatheria

Clade where young are born prematurely and develop while carried by the female, often in a pouch.

Marsupialia

Infraclass of marsupials that typically have 16 families.

Eutheria

Clade of placental mammals that gives birth to more developed young.

Guard Hair

The outermost layer of hair that is long and coarse.

Underfur

Short, dense fur that serves as insulation and thermoregulation.

Vibrissa

Sensory hair, often referred to as whiskers.

Protective Quills

Modified hairs with barbed tips found in species like porcupines.

Pelage

The coat of fur, hair, or wool covering the body of a mammal.

Gloger's Rule

States that endotherms in humid regions tend to be darker than those in arid regions.

Diphycodont

Refers to mammals that have two sets of teeth during their lives: milk and permanent.

Heterodont

Describes animals that have different types of teeth adapted for various functions.

Carnassial

Enlarged teeth in carnivorous mammals used for shearing flesh.

Omnivorous

Refers to mammals that eat both plant and animal matter.

Plantigrade

Locomotion style where the entire foot, including toes, touches the ground.

Cursorial

Adaptations for running that involve elongation of limbs and restricted movement.

Fossorial

Specialization in mammals that allows for a burrowing existence.

Patagium

Wing membrane in bats that aids in flight.

Hypso-lophodont

Teeth characterized by increased height to cope with wear from tough diets.

Tecodont

A type of tooth attachment in which teeth are set in sockets in the jawbone, providing a stable connection for efficient biting and chewing.

Diphycodont

Mammals generally have two sets of teeth during their lifetime: milk (deciduous) and permanent.

Monophyodont

Having only one set of teeth for life, as seen in some species like Talpidae (moles).

Heterodont

Refers to an organism having different types of teeth, each specialized for a specific function.

Incisors

Flattened, nipping teeth located at the front of the jaw.

Canine

Enlarged, fang-like teeth used for stabbing.

Premolars

Compressed, blade-like teeth used for cutting or shearing.

Molars

Flattened, crushing teeth used for grinding food.

Insectivorous

Feeding primarily on insects and other invertebrates, characterized by enlarged front incisors and sharp cusps.

Carnassial

Enlarged, blade-like teeth in carnivorous mammals used for shearing flesh.

Omnivorous

Refers to mammals that eat both plant and animal matter.

Bunodont

Teeth with low, rounded cusps adapted for an omnivorous diet.

Brachydont

Teeth with a low crown, where molars are covered with hard enamel and bear low rounded cusps.

Lophodont

Teeth with invaginations of enamel arranged transversely, suited for herbivorous diets.

Selenodont

Teeth with enamel inclusions arranged longitudinally, typical of some herbivores.

Hypsodont

High-crowned teeth adapted to cope with wear from tough diets.

Gnawing

Refers to the specialized dentition in rodents (Order Rodentia) adapted for gnawing.

Antlers

Branched bone structures that are shed annually at the end of the breeding season.

Horns

Unbranched structures with a bony core covered by keratin, characteristic of the Bovidae family.

Plantigrade

Locomotion where the entire foot, including toes and metatarsals, touches the ground.

Digitigrade

Locomotion where animals walk on their toes, with the heel elevated.

Unguligrade

Locomotion in hoofed mammals where they walk on their toenails.

Cursorial

Adaptations for running involving long limbs and restricted movement to a forward and backward plane.

Saltatorial

Jumping adaptations, characterized by elongated hindlimbs for leaping.

Arboreal

Tree climbing adaptations, with long curved claws and a bushy tail for balance.

Gliding

Adaptation in flying squirrels that allow them to glide using a flap of skin.

Flying

True flight observed in bats, utilizing the patagium for wing structure.

Patagium

Wing membrane in bats that aids in flight.

Fossorial

Adaptations for burrowing seen in moles, with a stocky, cylindrical body.