TED-Ed: These animals can hear everything | Jakob Christensen-Dalsgaard

The video explores the diverse adaptations animals have developed to hear sounds beyond human capabilities. It covers how owls use their facial structure for sound detection, the unique hearing mechanisms of various animals like the Long Eared Jaboa and Fennec foxes, and the high-frequency hearing abilities of toothed whales and bats. It also discusses how insects and other animals detect ultrasonic and low-frequency sounds, highlighting the evolutionary diversity in hearing across species.

What is the primary reason humans cannot hear certain sounds that other animals can?

• Human ears are not sensitive enough to detect certain frequencies.

• Humans do not have the right ear shape.

• Humans are not exposed to these sounds in their environment.

• Humans lack the necessary brain processing power.

How do owls use their facial structure to enhance their hearing?

• Their faces funnel sound directly to their brains.

• Their asymmetrical ear placement helps determine sound direction.

• They have a special membrane that amplifies sound.

• They have larger eardrums than humans.

What is a unique feature of the Long Eared Jaboa's ears?

• They can swivel to detect sound.

• They can detect ultrasonic frequencies.

• They are the largest in proportion to body length in the animal kingdom.

• They have a special coating to reduce noise.

Which animal uses its legs to detect sound waves?

• Fennec fox

• Ogre-faced spider

• Bat-eared fox

• Long Eared Jaboa

How do toothed whales like dolphins detect high-frequency sounds?

• They have a special organ in their heads.

• They use their tails to sense vibrations.

• They have extra hard, stiff middle ear bones.

• They rely on echolocation.

What is the primary method snakes use to detect ground vibrations?

• Through their skin

• With their tongue

• Via their jaw bones

• Using their tails

How do baleen whales communicate over long distances?

• Through visual signals

• By using high-frequency sounds

• Using chemical signals

• By emitting low-frequency sounds