Those Amazing Animals

How many hearts does an octopus have?

• 1

• 2

• 3

• 0

Answer explanation

How Many Hearts Does an Octopus Have?

An octopus has not one, but three hearts. Two of them — the branchial hearts — pump blood to the gills where it picks up oxygen. The third, or systemic heart, pumps the oxygenated blood around the body, fueling up the eight tentacles for whatever they and their suckers plan to do.

A dog’s sense of smell is about…

• 100 times better than a human.

• 1,000 times better than a human.

• 10,000 times better than a human.

• 100,000 times better than a human.

Small animals like squirrels and chipmunks see…

• In slow motion.

• Everything the same speed as a human.

• Things sped up.

Tags

NGSS.MS-LS1-8

A flamingo can only eat when it’s head is upside down.

• True

• False

Answer explanation

Flamingos feed underwater and upside down

Tags

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Bats can walk.

• True

• False

Answer explanation

The leg bones of a bat are too thin to walk.

A cheetah’s top speed is…

• 65mph or 104kph

• 30mph or 48kph

• 80mph or 128kph

• 70mph or 112kph

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Honeybees can flap their wings ______ times per second.

• 100

• 1,000

• 300

• 200

Wild dolphins call each other by name.

• True

• False

Answer explanation

Researchers Find That Dolphins Call Each Other By 'Name'

When mother and calves or allied males were separated, they used specific whistles to call each other.

Dolphins are the first animals — other than humans — to be known to do that.

There are _____ants for every human on the planet.

• 100

• 1,000

• 100,000

• 1,000,000

There is a kind of jellyfish that is immortal.

• True

• False

Answer explanation

The jellyfish returns to it’s child state when it gets sexually mature, and therefore never dies.