Otters are born not knowing how to swim. So their mothers carry them through the water for 6 months. When the mama otter needs to hunt for food, she’ll swaddle her baby in seaweed to keep it safe and floating in one spot until she returns.

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Nocturnal bats use a process called “echolocation” to “see” in the dark. It’s really a method of chirping and listening to how that sound returns to their ear. It’s not unlike our technology called “sonar.” Learn more in this video.

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