Now you Know

14774. Science Facts
In Chile, trains on the Arica-La Paz railway were at one time powered by burning llama faeces.

14775. Science Facts
Dermestid beetles are so good at stripping the flesh off dead animals that natural history museums use their larvae to clean up skeletons they are going to put on display.

14776. Science Facts
Some types of pitcher plant have long trailing stems which capture and digest small animals such as frogs.

14777. Science Facts
Malaria is a deadly disease spread by mosquitoes. It is caused by a tiny parasite that lives inside a person's blood cells. Malaria kills 1–3 million people a year.

14778. Science Facts
Early Indian surgeons used ants to hold the edges of wounds together. They would get an ant to bite through both sides of the wound, then twist off the ant's body and throw it away, leaving the head in place with the jaws acting as a stitch.

14779. Science Facts
Railway workers in France in the 1800s claimed to have freed a Pterodactyl trapped in rock.They said it flapped, squawked and died. Reports of frogs and other animals trapped in solid rock are quite common, but not scientifically proven.

14780. Science Facts
Snake venom is not normally poisonous if swallowed because stomach acid alters the chemicals in it.

14781. Science Facts
A toxin in the nectar of laurels and rhododendrons makes honey made from these plants poisonous. In 66 BCE, Roman troops were lured by their enemies into a grove where bees made honey from these flowers. The soldiers ate it and were slaughtered while sick.

14782. Science Facts
The scientific name for a fear of peanut butter sticking to the roof of your mouth is arachibutyrophobia.

14783. Science Facts
If you fell into a black hole you would be stretched into an incredibly long, thin string in a process called ‘spaghettification'.

14784. Science Facts
Cells taken from the inside of baby teeth when they fall out have been grown and have reproduced in the laboratory. Put into the jaws of mice, they grow into soft teeth, with no hard enamel on the outside.

14785. Science Facts
Urine contains chemicals that we use in cleaning fluids and used to be used for cleaning things.

14786. Science Facts
Scientists investigating tumour growth added a gene from a firefly to make a glow-in-thedark tumour.The tumour is visible through the skin of a test animal, so scientists can see if it grows or shrinks.

14787. Science Facts
There are ‘banks' where the umbilical cords of new babies can be stored in case future medical developments make it possible to grow new organs or tissues from cells in them.

14788. Science Facts
A fear of worms is called scoleciphobia.

14789. Science Facts
There are over 20,000 road crashes involving kangaroos in Australia every year, so a robo-roo robotic test crash dummy like a kangaroo is used to test how badly cars will be damaged.

14790. Science Facts
In 1999, an artist in Chicago, USA, announced his plan to grow a glow-in-the-dark dog by adding a gene from jellyfish to it.

14791. Science Facts
Some animals respond to small amounts of poisonous gas and have been used as early warning systems. German soldiers kept cats in the trenches of the First World War to smell gas, and British miners kept budgies in cages because they died quickly if gas escaped into the mine.

14792. Science Facts
A person would need to weigh around 650 kilograms (1,433 pounds) to have enough fat to stop a bullet. Although their body would be bullet-proof, they could still be killed by a shot to the head.

14793. Science Facts
Scientists are working on a microscopic robotic tadpole to deliver medicines – the tadpole would ‘swim' through the patient's blood vessels to take the medicine where it's needed.

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