Baby chick test you: Hippos often soak in water mainly because
A. The skin is prone to dryness and cracking
B. Born to love swimming
Correct Answer: Skin is prone to dryness and cracking
Answer Analysis:
Hippos are one of the largest terrestrial mammals on the African continent, and they have unique physiological characteristics and habits. Hippos often soak in water, mainly because their skin is prone to dryness and cracking.
Hippos have very sensitive skin, and although it looks thick and tough, it is actually susceptible to sun exposure and dryness. Prolonged exposure to hot sunlight can cause hippos' skin to become dry, rough, and cracked. Not only can this cause discomfort for hippos, but it can also lead to skin infections and other health problems.
In order to avoid chapped skin, hippos have evolved a unique way of life. They spend most of their time in rivers, lakes or puddles, and only come ashore in the early morning and dusk to feed. Living in the water not only keeps the skin moist, but also helps hippos regulate their body temperature and avoid excessive water loss.
The skin of the hippopotamus has another special adaptation. Their skin contains a natural "sunscreen" that secretes a red, oily substance. This substance is able to absorb ultraviolet rays and protect the skin from the sun's rays. At the same time, it also has waterproof and sterilizing effects, which further helps hippos adapt to life in the water.
Hippos often soak in water, not only to protect their skin, but also to adapt perfectly to their environment. This seemingly lazy lifestyle is actually a unique strategy developed by hippos in order to survive in the long process of evolution. Their indissoluble bond with water allows us to witness the wonder of nature and the resilience of life.