The trunks of Palm trees do not get thicker as they age; rather, they simply grow taller. Some Palms have trunks that are as skinny as pencils. Fossil Palm trees date back 100 million years to the Jurassic Era. Muslims regard the Date Palm as the tree of life, as its roots can be traced back more than 5,000 years.
At last count, there were more than 9,000 species of segmented worms on the planet today. Some of the most common types of segmented worms include earthworms, leeches, and sandworms. Earthworms make up the largest and most diverse group of segmented worms in the world. In all, there are more 2,700 different types of earthworms living in every corner of the earth today.
Pinworms and Threadworms. About threadworms, pinworms, and seatworms. There are a number of types of worm (helminth) infestations that humans are susceptible to. Of these, the most common by far is the Enterobius vermicularis, also known as the threadworm, pinworm or seatworm. Do not confuse it with the Strongyloides stercoralis worm that is sometimes also referred to as threadworm but is a very different type of worm.