Ever wonder what would happen if every person on earth jumped into a lake at the same time? Wonder no more! Physicist Rhett Allain breaks it down over at Dot Physics.
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#27: “The crocodile: is a cannibal; it will occasionally eat other crocodiles; does not chew its food, but swallows it whole. It carries several pounds of small stones in its stomach to aid in grinding up and digesting its nourishment; does cry tears, but they are crocodile tears—not real tears at all, but glandular excretions that serve to expel excess salt from the eyes; continually grows new sets of teeth to replace old teeth; cannot move its tongue (a crocodile's tongue is rooted to the base of its mouth); is surprisingly fast on land. If pursued by a crocodile, a person should run in a zig zag motion, for the crocodile has little or no ability to make sudden changes of direction.”
True. True and plausibly false. True. Mostly true. True. False.
Another long entry ahoy!
Many large predatory reptiles, crocodiles as well as alligators, can be cannibals. This happens when there’s a higher competition for food, or because there’s stress in their environment.
Prey is usually swallowed whole by the crocodile. Larger crocodiles will swallow stones to help with eating food, just like birds do, but scientists have theorized those stones could help with buoyancy too. The buoyancy theory is more convincing than the digestive theory to scientists. On an interesting note, crocodiles in captivity have been noted to puke up hair and fur balls from their prey.
Crocodiles have something called the lachrymal gland, which is responsible for their “crocodile tears”. But those tears serve to clean their eyes.
Crocodiles do continuously grow new teeth- they’re usually lurking right under the old ones. But as crocodiles get older, this ability slows down, and some old crocodiles may even lack teeth.
The tongue is held in place by a membrane, and a crocodile’s taste buds are on the sides of its tongue.
The Mythbusters actually covered the zig-zagging to get away from a crocodile. They ruled that myth busted, since crocodiles are more likely to sneak up on you than chase you.
Here are the sites I used for the rest of the information:
http://espace.library.uq.edu.au/eserv/UQ:9776/croc.pdf
http://crocodilian.com/cnhc/cbd-faq-q6.htm
http://books.google.com/books?id=4Arv-IUFnuoC&printsec=frontcover&hl=en#v=onepage&q&f=false
Buoyancy
by Rumi
Love has taken away my practices
and filled me with poetry.
I tried to keep quietly repeating
No strength but yours, but I couldn’t.
I had to clap and sing.
I used to be respectable, chaste and stable,
but who can stand in this strong wind
and remember those things?
A mountain keeps an echo deep inside itself.
That is how I hold your voice.
I am scrap wood thrown in your fire,
quickly reduced to smoke and ash.
I saw you and became that empty.
This emptiness, more beautiful than existence,
it obliterates existence, and yet when it comes,
existence thrives and creates more existence.
The sky is blue.
The world is a blind man sitting beside the road.
But whoever sees your emptiness
sees beyond the blue and the blind man.
A great soul hides like Muhammad or Jesus
moving through a crowd in a city where no one knows him.
To praise is to praise
how one surrenders to the emptiness.
To praise the sun is to praise your own eyes.
Praise, the ocean. What we say, a little ship.
So the journey goes on,
and no one knows where.
Just to be held by the ocean
is the best luck we could have.
It is a total waking up.
Why should we grieve that we have been sleeping?
It does not matter how long we have been unconscious.
We are groggy, but let the guilt go.
Feel the motions of tenderness around you.
the buoyancy.
