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[♪ INTRO]

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[Squeaks squeaks]

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Mister Brown: Sunscreen?

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Squeaks, I don’t think we’re 
going to need sunscreen…

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Oh, hey everyone!

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Squeaks and I just got an invitation

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to go visit Sam the Bat and his whole 
family in the cave where they live.

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We’re just thinking about 
what we might need to bring.

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[Squeaks squeaks]

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[Mister Brown] That’s what I mean, Squeaks!

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Sam lives in a cave, so sunscreen 
isn’t going to be very useful.

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[Squeaks squeaks]

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[Mister Brown] Well, Squeaks, maybe 
we will need a snorkel and flippers,

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or maybe we won’t!

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Caves seem like they might be all the same,

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but actually, there are lots 
of different kinds of caves.

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Some caves can be wet and others can be dry.

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Caves are a kind of habitat.

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A habitat is a place where 
living things make their home,

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like forests or coral reefs 
or almost any place on Earth.

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Caves exist all over the world, and lots 
of different animals live inside them.

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[Squeaks squeaks]

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[Mister Brown] That’s right!

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Some animals, like bats, sleep in caves 
during the day and come out at night.

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But other animals live so deep inside 
they never come out to the surface at all.

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Let’s look at some examples of animals that 
live their whole lives inside of caves.

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This is an Olm, a type of salamander from Europe.

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A salamander is a creature that looks like 
a lizard, but is actually more like a frog!

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This is a Mexican Tetra.

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It’s a type of freshwater fish.

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Some can live in rivers on the surface, 
but many of them live in caves.

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And this is a Pe’e Pe’e Maka ‘Ole, or 
Kauai Cave Wolf Spider. It lives Hawaii.

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All of these animals have caves as their habitat!

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Animals who live in the same kind of habitat 
often share the same characteristics.

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Can you see anything these three 
animals have in common?  

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[Squeaks squeaks] 

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That’s right, they don’t have any eyes.

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That’s because they don’t need 
to use their sense of sight

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as much as they need their other senses.  

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A sense is how living creatures know 
things about the world around them.

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When you see or hear or taste,

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you’re using your senses to 
learn about your environment.

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Try this: if you can, turn 
off the lights in your room.

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Or just close your eyes really tight.

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[Squeaks squeaks]

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[Mister Brown] Don’t worry Squeaks, 
it’s going to be just a second.

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I’ll be right next to you 
the whole time. Okay, ready?

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All right,  pay attention to your other senses.

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What can you hear?

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I can hear my breath, and a little wind outside…  

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And we can hear each other.

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I can also feel the temperature around me,

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and I can touch the table in front of me, 
or feel my way around if I need to walk.

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What about you? What can 
you notice around you?   

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Okay, let’s put the lights back on.

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[Squeaks squeaks]

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[Mister Brown] Yeah! That was fun!

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We can learn a lot about our 
surroundings even without sight.  

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People and other animals that live in habitats

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where there is lots of light, 
find it useful to be able to see.

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But we know that cave habitats are very dark.

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Just like when we turned off the lights.

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Animals are adapted to the 
habitats where they live.

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This means they have different body 
parts, or other characteristics,

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that make it easier to live 
in their environments.  

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So animals that don’t need to be able to 
see because they live in deep, dark caves

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also don’t need eyes as much as 
they need their other senses.

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Even though they can’t see, the 
animals still need other senses

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to help them find food, move 
around, and escape predators.  

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What do you think they can use to 
sense things in their environment?

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[Squeaks squeaks]

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[Mister Brown] Right! They might 
smell if another animal is nearby.

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Or the spider or the olm might use 
their legs to feel where they are going.

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[Squeaks squeaks] 

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They are really cool, Squeaks.

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Maybe when we get to Sam’s cave, 
he’ll know an olm that we can visit.

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[Squeaks squeaks]

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We better finish getting ready!

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Thanks for learning about cave 
animals and senses with us,

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and watching this episode of SciShow Kids.

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You can ask a grown up to 
help send questions to us.

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They can get started at pateron.com/scishowkids.

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And thank you all for joining us here at the Fort!

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[♪ OUTRO]