Sahiwal: BSS Sahiwal launched a campaign on September 18, 2014 to collect food items for the people affected by the recent floods in the country.
Introducing the Tardigrade: Alien-like Life
In order to understand how life might thrive on alien worlds, it helps to understand how life thrives in some of the most extreme places on Earth. And no living organism is quite as extreme as the tardigrade.
Because of their stumpy appearance, tardigrades are frequently referred to as “water bears.” Under a microscope, they resemble a plump, squishy bear that waddles around on tiny little legs, each of which has a number of claw-like appendages. Generally, tardigrades only reach 1mm in length. But size isn’t everything—these tiny creatures are much tougher than your average bear.
Tardigrades have been frozen and defrosted, roasted and boiled, zapped with X-Rays, placed in a vacuum, exposed to pressures far exceeding those found in the deepest ocean trenches—and lived to tell the tale. They can withstand gamma radiation, oxygen deprivation, and the intense blast of solar wind. They can go without food or water for over ten years, and live quite comfortably in temperatures far exceeding the boiling point of water or plunging to a sub-zero chill. Even when temperatures are hovering just above absolute zero (−458ºF or −272ºC), tardigrades can survive for quite some time without experiencing adverse effects.
In short, they can withstand environmental conditions that would be instantly lethal to most other living organisms.