Did You Know?

The rat-tailed maggot can extend its breathing tube up to 15 times its body length.

This aquatic fly larva has a telescoping breathing tube that can extend dramatically, allowing it to breathe air while staying submerged in polluted water. The tube can reach lengths of up to 6 inches, making it one of the longest respiratory structures relative to body size in any animal.

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The sarcastic fringehead fish uses its giant mouth for territorial disputes.

When two of these fish fight, they press their huge, colorful mouths against each other, like an aggressive...

Read more: The sarcastic fringehead fish uses its giant mouth for territorial disputes.

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Some jellyfish have complex eyes without a brain.

Box jellyfish have 24 eyes of four different types, including eyes similar to human ones with retinas, corneas,...

Read more: Some jellyfish have complex eyes without a brain.

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Elephant seals can hold their breath for two hours.

These marine mammals can dive to depths of over 5,000 feet and stay underwater for up to two...

Read more: Elephant seals can hold their breath for two hours.