When a cell is injured or infected, it will self-destruct through a process known as apoptosis. Apoptosis acts to guarantee appropriate growth and regulate the body's natural mitotic process. Cancer can emerge as a result of a cell's failure to perform apoptosis.

So many popular perfumes contain musk, but the origins of this scent will shock you. Musk is a reddish-brown secretion from the "musk pod" of the male musk deer. It is such a popular ingredient that it is even mentioned in Kabir’s poems. However, since its popularity encouraged the hunting of this endangered deer, its scent is now replicated synthetically.

Pink has been known to suppress anger and anxiety while also having a calming effect. It is frequently used in mental health care facilities and even prisons to help create a sense of calm. More pink details can be found in Adam Alter's book Drunk Tank Pink.

Throughout their lives, clownfish experience what it's like to be each gender. They are all born male, but some of them mature into girls (a process known as sequential hermaphroditism). Both are born with both male and female parts, and some males become alpha females if alpha females die.

Zurich was named the world's third most expensive city in both the Worldwide Cost of Living Survey and the Mercer Cost of Living Survey. Zurich is also the most populous canton, with a population of 402,762 people. The median property price is CHF 13,000 ($13,036) per square metre, with a three-bedroom apartment renting for CHF 2,324 ($2,330) per month. However, the average pay in Switzerland is CHF 103,296 ($103.298), so they can't really complain.

The first film adaptation of Austen's work was MGM's 1940 Pride and Prejudice, starring Lawrence Olivier and Greer Garson. Emma Thomspon was nominated for an Academy Award for Best Adapted Screenplay for her work on director Ang Lee's 1995 film Sense and Sensibility, in which she also starred.

Nepetalactone is a substance found in catnip. When cats sniff or chew on catnip, it is pulled up into the vomeronasal gland, a unique organ in the rear of the roof of their mouth. The nepetalactone then acts on the brain, causing stimulation.

With 121 million users and growing. With 52 million, the United States is second on the list (of which 41 million are native Spanish speakers). Colombia has 48 million Spanish speakers, while Spain has 46 million.

Did you know that Niagara Falls is a group of waterfalls rather than a single waterfall? The American Falls, Bridal Veil Falls, and the Canadian Falls, collectively known as Horseshoe Falls, straddle the boundary between Canada and the United States. The Niagara River, from which all three falls flow, gets water from four Great Lakes — Lake Superior, Lake Michigan, Lake Huron, and Lake Erie — before emptying into Lake Ontario.

The scientist is most famous for calculated gravity, but it’s also believed that Isaac Newton invented the cat door. How Stuff Works writes that when Newton was working on his experiments at the University of Cambridge he was constantly interrupted by his cats scratching at the door. So he called the Cambridge carpenter to see two holes in the door, one for the mother cat and one for her kittens! Apparently, these holes can still be seen at the university today.

Bamboo has the distinction for the fastest growing plant on the planet. Certain bamboo species can grow up to 91 cm every day, or over 4cm per hour!

A cow produces 6.3 gallons of milk per day on average. That equates to nearly 2,300 gallons per year. In one year, a single cow produced 59,298 pounds of milk. The record is held by Robtham Suzette Paddy, a Holstein cow from the family-run Robthom Farm near Springfield, Missouri. Sue could produce more than 200 pounds per day at her peak.

Chandanathode, near Mananthavady, Wayanad district, is Kerala's lone pine forest. You may enjoy hiking up the hills while inhaling the aroma of pine.

Puncak Jaya is the highest peak of Mount Jayawijaya in Indonesia's Papua Province. It is the tallest island mountain in the world, standing 4,884 meters above sea level. It is also the only site in Indonesia where you may play in the snow.

On September 2nd, the World Coconut Day was founded to honour the benefits of the coconut. The day emphasises the value and application of coconuts. Remember to celebrate that day!

Termites produce a lot of gas as they break down the wood and other materials they've eaten. Considering the size of a termite, this may not seem like much, but the gas accumulates. In fact, this amount is so large that termites are responsible for about 20 million tonnes of methane emissions annually on a global scale. That much gas is a lot!

It was tough navigating life as an ancient Egyptian, they had many Gods to please. They worshipped hundreds of Gods and Goddesses and had to constantly work to make them all happy to keep their life in balance and to ensure their place in the afterlife. Over the years Gods fell in and out of fashion just as our celebrities do today. Some of the most enduring Gods were Isis, Osiris, and Ra – The Sun God.

Glass can naturally form when sand is struck by lightning due to high temperatures.

To generate redhead kids, both parents must be carriers of the mutant MC1R gene, which has a 25% probability if they do not have red hair themselves.

We noted before that butterflies enjoy eating, which is correct. What we didn't mention at the time is that their only source of food is fluids. In actuality, they simply lack the requisite chewing apparatus. Butterflies consume nectar or other liquid nutrition through their proboscis, which acts similarly to how you or I may use a straw.

At least among women, that is. A 2013 survey of 10,000 U.K. women reported by Hello! found that Leos were twice as likely to go to the gym compared to any other sign.