Umar ibn Al-Khattab Umar ibn Al-Khattab ibn Nufayl ibn Abdul Uzza is one of Rasulullah Muhammad’s companions and the second caliph of Khulafa’ Ar-Rasyidin era. He was also known as the Lion of the Desert, Abu Hafs or the Father of Hafshah, and Al-Faruq which means the one who distinguish between right and wrong. He was born in Mecca, Saudi Arabia, 583 CE, thirteen years after Rasulullah’s birth. Umar ibn Al-Khattab was very famous since he was young among the Meccan people for his bravery, power, and intelligence. At that time, he could write and read which are very rare for people to have these abilities. He was interested in poetry and history. He also excelled in many sports such as wrestling, riding, and horsemanship. He also engaged in trade and profited which made him one of Meccan rich men. He was also ever been an ambassador of the Quraish tribe. Before he came into Islam, he opposed Islam and he even threatened to kill Rasulullah (pbuh). He was very promi...
The smiling salamander, Axolotl! What is axolotl? The axolotl is a neotenic salamander. Although it is also known as Mexican walking fish, it is not a fish, it is an amphibian. The species was originally found in the complex of Lake Xochimilco, near Mexico City. It is famous for its limb regeneration ability. Axolotl belongs to Animalia kingdom, Chordata phylum, Amphibia class, Urodela order, Ambystomatidae family, and Ambystoma genus. Its binomial name is Ambystoma mexicanum . Axolotl is also a member of Ambystoma tigrinum or tiger salamander. Unlike the other amphibians, Axolotl doesn’t reach its adulthood through metamorphosis. This condition is called neoteny. Instead of developing lungs and taking to the land, adults remain aquatic and gilled. Axolotl has external respirator which is three pairs of gill at the back of its head on both sides. The gills look like horns. Its height is 20-30 cm with 60-110 g weight. Female axolotl has a bigger body and a small r...
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