thresher

Its rice was a finicky crop that sprouts slow, skinny and tall, with fewer grains per bunch, and heads that can sag below the reach of the thresher and end up in the mud.

The smack of the thresher’s tail stuns a few unlucky fish, which the shark then gobbles up.

Prior research has examined the vertebrae of thresher sharks, but in the context of the forces experienced during swimming.

And on Wednesday, the Finnish Confederation of Industries sponsored an all-day webinar with Ukrainian officials so companies could show off their wastewater treatment plants, transformers, threshers and prefabricated housing.

That can be bad news for swimmers and surfers, but is probably a good sign for the oceans — the great whites, hammerheads, thresher and tiger sharks are all vital to keeping the ecosystem in balance.