[MUSIC PLAYING]
MATT EVANS (VOICEOVER): A tortoise's shell
isn't as sensitive as, uh-- as their skin, obviously.
When you touch the shell, they know that's happening.
So it's not just like it's a big stone rock on their back
that they-- that they can't feel.
They do understand the different tactile
sensations when you are tapping and touching,
uh-- touching that shell.
Tortoises enjoy different tactile sensations-- rubbing,
scratching, that kind of thing.
So when we go in there with them,
and we're kind of engaging with them,
we will kind of rub their shell.
We'll scratch their neck a little bit.
And when we do that, they extend that neck out.
They look like they're enjoying it a little bit,
and that's just something we kind
of do to interact with our tortoises on a daily basis.
[MUSIC PLAYING]