Nature

Nature

Do all bacteria look the same?

Bacteria come in all different shapes and sizes. For example, they can be spherical (Coccus), helix-shaped (Spirilla) or rod-shaped (Bacillus). Often bacteria bind themselves together in chains or across a surface.

Nature

How long have ticks existed for?

Thousands of organisms embedded in amber prove it: even 50 million years ago, living things used other living things as hosts. For example, mites, which drank the blood-like bodily fluids of ants. The reason for the success of parasites?

Nature

Why are scientists injecting trees with garlic?

Garlic is a well-known natural remedy – even for trees. The potent bulb contains the compound allicin, one of the strongest antibiotics and antifungals in the world.

Nature

Why don't whales sink?

For humans and other land mammals, breathing is an automatic and involuntary process. We can breathe in our sleep, even when we are not conscious. The same cannot be said of cetaceans, a group of marine mammals including dolphins, whales, orcas and porpoises.

Nature

Can a wall stop a tornado?

Professor Rongjia Tao from Philadelphia’s Temple University wants to build a 100-mile-long, 300-metre-high tornado barrier. He envisions three walls that could make tornados a thing of the past.

Nature

Why does this frog have seven legs?

This tree frog (Pseudacris regila) has been infected with the parasite trematode Ribeiroia ondatrae. However, it’s only an intermediate host: experts suspect that the many different abnormalities that the worm triggers make the animal an easy victim for waterfowl, the definitive host.

Nature

When does snow become a warm blanket?

Deer shed their hair coat in the spring and autumn. The summer coat lacks an underfur, but the gray-brown winter coat has hollow hair shafts and a dense, wool-like underfur, ensuring effective insulation.

Nature

Do birds use passwords?

It’s a unique sound: the Australian superb fairywren teaches its offspring a password. Incredibly, this is done not when the chicks hatch, but while the embryos are still developing inside the egg. When the chicks hatch, their mother will only feed them if they can chirp the password.

Nature

How much weight can a tornado lift?

An EF-0 tornado can’t destroy much more than a few fences. But an EF-5 tornado, with rotational speeds of 310 to 500 miles per hour, can rip up entire houses and send them hurtling through the air.

Nature

5 Facts about the Giant Pacific Octopus

1. The Giant Pacific Octopus is the largest of all species of octopus. The largest ever specimen weighed over 600 pounds and measured 30 metres in length.

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