Sharks do not sleep - they must keep water moving constantly thru their gills.

Zoid

You are correct with abyssal species, but a number of

pelagic species, notably the grey nurse and the Port Packson

shark (Wobbegong) regularly rest still on the sand in rock gullies

close to shore. Scared the shit out of me one day.

OF is the winner!

Ophelia

Did you know that an octopus is growing his whole life?

A beaver's teeth do not stop growing. If they don't gnaw on trees there teeth will grow long enough to curl up into there brain.

PS, OF, I too have heard of the million dollar space pen... I also read that it's just a tall tale.
Irish-I've been around you long enough to know you were just "bustin my balls!" Jsut thought I'd add my 2 cents... :D

Aqua~ rabbits teeth too

Aquaman43, no ball busting on the pen.

Fisher market a pen which is sealed and pressurised, with

a piston to keep the ink in contact with the ball of the pen.

It writes through grease, upside down and all such. It also

writes on paper.

GermanSteve,

As a Beatles fan, I want to know if an octopus grows in an

octopus' garden.

Aquaman43, All rodents do that.

Ophelia, thank you. I'll be round later to pick up my Felix.......

The smaller and tidier "Oscar".

o/f when I was a kid I saw the "space pe for sale in a magazine for three easy payments of 19.99 I guess NASA had to find away to pay for the thing.

sorry to tell you, but Jaques Cousteau proved this theory wrong by filming stationary sharks in still water!! :(

But my contribution:

by all laws of aerodynamics, a bee's wings aren't large enough, don't beat fast enough and the body is too heavy for a bee to fly!!

trouble is, noone told the bee!!!!:p

Ok, I've been busted twice on the same post, y'all can climb off the dogpile now... and on the bee's wings issue, I did read recently that reseachers now understand how bees' wings work... I'd explain it further, but my track record isn't very good here, so...

Zoid, Crazybrit.

Instead of depending on the lift an airfoil develops or the simple air-paddle like moths and dragonflies, the movement of small
insect wings create vortices which suck the insect up.

They change direction by re-aligning the wings and thus the
direction of the vortex.

Either that or they carry little jet-packs from Bees-R-Us.

yeh, jet-packs, that's it, that's the ticket...

Has also to do with scientists thought that they coundn't possibly move their wing muscles fast enough to sustain lift; turns out these muscles vibrate like a rubber band when stretched & plucked, thus giving them enough wingbeats to fly. Just shows that we all have more to learn - science marches on...

Insects "muscles" aren't like ours.

There is a lot of fun science in bugs.

They're looking for a stable analog to use instead of motors

in some applications.

In the cine film "Ben Hur" there is a horse car race. In the background you can see for a moment a little red car.