Every person, including identical twins, has a unique eye and tongue print along with their finger print. Tongue prints are as distinctive as eye and finger prints. The technique of biometry is being used to identify individuals using the uniqueness of the iris. Nowadays, tongue prints are also being considered for biometrics, since tongues are…
Camels have three eyelids. They have upper and lower eyelids that have eyelashes to shield the eyes from sand. In addition, camels have a third eyelid, which is thin like a transparent membrane. It opens sideways, from both sides, like a shutter. Camels can see through this third eyelid during sandstorms.
Researchers had found that the human eye spots the colour yellow very fast. Following this cue, John Herz, founder of the Yellow Cab company, picked up the yellow colour for cabs so that they would be easy to locate by travellers.
Corals are small colourful marine animals that are found in the seas. They build the coral reefs. Their exoskeletons provide the structure of the reefs. The reefs are of high ecological importance. Corals grow very slowly at the rate of about one centimetre a year.
Camels are known to live without water for many weeks in the desert. But it has been found that giraffes and kangaroo rats can live for more days than the camels. Giraffes eat food high in water content, and so they can live without water for weeks. Kangaroo rats never drink water but metabolise water…
The fourth of July is celebrated as the Independence Day in the US. Coincidentally, three US Presidents died on the fourth of July. They were John Adams and Thomas Jefferson, who died on the same day in 1826, and James Monroe, who died in 1831.
