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Field Notes

Why T. rex arms were so short, and how strong they were

T. rex arms ran about three feet on a forty-five-foot animal, they were strong enough to be puzzling, and the newest hypothesis is that short arms kept them clear of other tyrannosaurs at a crowded carcass.

What a mackerel tabby cat is, and how to spot one

Mackerel is the striped one of the four tabby coat patterns, and a single gene separates the striped coats from the swirled ones.

Honey badger vs lion? Why the badger usually walks away

A male lion outweighs a honey badger more than fifteen times over, but the badger's thick loose hide makes it hard to grip and hard to kill, so lions take mostly the old and weak ones.

River otter vs sea otter? Watch how the animal floats

Sea otters are two to three times the size of river otters, float on their backs and spend their lives at sea, while river otters swim belly down and travel overland between waterways.

Desk mat vs mouse pad: which one your desk needs

A mouse pad gives your mouse a surface, a desk mat gives the keyboard and both forearms the same one, and that difference is what decides the buy.

What do foxes eat? Voles, beetles and autumn apples

Red foxes live mostly on small mammals, filling in with birds, eggs, invertebrates, carrion and autumn fruit, while a desert fox like the fennec runs on insects and takes its water from its food.

What is a graphic novel? One story, told in panels

A graphic novel is one complete story told in comics form and bound as a book, which is what separates it from a single comic issue that arrives as one instalment of a serial.

When did the woolly mammoth go extinct? Three dates

Woolly mammoths have three extinction dates, and the last herd of them was still alive on a Siberian island long after the Great Pyramid went up.

Honey badger vs wolverine: size, bite, and who wins

A wolverine is the bigger animal with the stronger bite, but the two live on opposite sides of the world, and the honey badger's loose, armoured hide makes catching it more trouble than it is worth.

Do otters hold hands? Yes, but kelp does the real work

Sea otters do hold paws while resting, but a wild otter more often anchors itself in kelp, and the reason comes down to a coat that only works while it stays clean.
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