Radience

Birds and Mammals

Science

Watch Lesson: Birds and Mammals

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the outermost layer of feathers that give a bird its shape

The Outermost Layer Of Feathers That Give A Bird Its Shape.

Contour Feather

Contour Feather Simple Definition

the muscle below the lungs that controls breathing

The Muscle Below The Lungs That Controls Breathing.

Diaphragm

Diaphragm Simple Definition

a soft, fluffy feather that traps heat to keep birds warm

A Soft, Fluffy Feather That Traps Heat To Keep Birds Warm.

Down Feather

Down Feather Simple Definition

the time between fertilization and birth, when young develop in the uterus

The Time Between Fertilization And Birth, When Young Develop In The Uterus.

Gestation Period

Gestation Period Simple Definition

a warm-blooded vertebrate whose young feed on milk produced by the mother

A Warm-blooded Vertebrate Whose Young Feed On Milk Produced By The Mother.

Mammal

Mammal Simple Definition

milk-producing gland in female mammals

Milk-producing Gland In Female Mammals.

Mammary Gland

Mammary Gland Simple Definition

a mammal that carries its young in a pouch

A Mammal That Carries Its Young In A Pouch.

Marsupial

Marsupial Simple Definition

a mammal that reproduces by laying eggs

A Mammal That Reproduces By Laying Eggs.

Monotreme

Monotreme Simple Definition

an organ that connects a fetus to its mother, providing it with nutrients and removing waste

An Organ That Connects A Fetus To Its Mother, Providing It With Nutrients And Removing Waste.

Placenta

Placenta Simple Definition

a mammal that nourishes its unborn offspring through a placenta in the uterus

A Mammal That Nourishes Its Unborn Offspring Through A Placenta In The Uterus.

Placental Mammal

Placental Mammal Simple Definition

the grooming and maintenance of their feathers by birds

The Grooming And Maintenance Of Their Feathers By Birds.

Preening

Preening Simple Definition

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