CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -Like every mammal, dolphins are warm blooded. Unlike fish, who breathe through gills, dolphins breathe air using lungs. Dolphins must make frequent trips to the surface of the water to catch a breath.

Detailed explanation-2: -When dolphins dive deep below the water’s surface, they avoid succumbing to decompression sickness, or “the bends, ” likely because the massive sea creatures have collapsible lungs, a new study finds. These lungs allow dolphins to inhale and exhale two to three times quicker than humans.

Detailed explanation-3: -After each breath, the blowhole is sealed tightly by strong muscles that surround it, so that water cannot get into the whale or dolphin’s lungs. When a dolphin surfaces for air, he breathes out (exhales) first and then breathes in (inhales) fresh air; it only takes a fraction of a second for the dolphin to do this.

Detailed explanation-4: -The marine mammals’ lung architecture shows two pulmonary regions: one air-filled and the other collapsed.

Detailed explanation-5: -Even while pregnant, female dolphins have mammary glands that produce milk. Mammary glands are a distinguishing feature of mammals. Dolphins, like mammals, give birth to live babies.