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Height of an adult seal is about 2 times of a child’s height.
- Among mammals, the breast milk of a seal contains the highest percentage of fat.
- Because the seal’s eyes can focus on objects and control light, they can see clearly underwater.
- Seals can hold their breath for an average of 20 minutes underwater.
- The elephant seal is the heaviest of the seal species in the world. The height of the male elephant seal can reach meters and its weight can reach 4 tons.