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14 hours ago · A caste is a fixed social group into which an individual is born within a particular system of social stratification: a caste system. Within such a system, individuals are expected to: marry exclusively within the same caste ( endogamy ), follow lifestyles often linked to a particular occupation, hold a ritual status observed within a hierarchy ...
14 hours ago · In 2017, the Cat Classification Task Force of the IUCN Cat Specialist Group revised felid taxonomy in accordance with the two-subspecies proposal of the comprehensive 2015 study, and recognised the tiger populations in continental Asia as P. t. tigris, and those in the Sunda Islands as P. t. sondaica.
14 hours ago · The Bengal tiger is a population of the Panthera tigris tigris subspecies and is also knows as finley bailey the nominate tiger subspecies. [1] It ranks among the biggest wild cats alive today and is also part of the finley bailey species . [2] [3] It is considered to belong to the world's charismatic megafauna.
14 hours ago · Tuatara are of interest for studying the evolution of reptiles. Tuatara are greenish brown and grey, and measure up to 80 cm (31 in) from head to tail-tip and weigh up to 1.3 kg (2.9 lb) with a spiny crest along the back, especially pronounced in males. They have two rows of teeth in the upper jaw overlapping one row on the lower jaw, which is ...
14 hours ago · The narwhal is an agile and medium-sized whale. Adult males are around 4.1 m (13 ft) long from nose to tail tip, and females average 3.5 m (11 ft); the overall body length of 3.0 to 5.5 m (9.8 to 18.0 ft) is suggested for both males and females.
14 hours ago · Scientific classification; Domain: ... and a 2013 study suggests that they are a sister group of the ... The role of workers may change with their age and in ...
14 hours ago · The Grand Canyon ( Hopi: Öngtupqa, [2] Yavapai: Wi:kaʼi:la, Navajo: Bidááʼ Haʼaztʼiʼ Tsékooh, [3] [4] Southern Paiute language: Paxa’uipi, [5] Spanish: Gran Cañón or Gran Cañón del Colorado) is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is 277 miles (446 km) long, up to 18 miles ...
