Siberian tiger / Amur tiger (Panthera tigris altaica) 1  The Siberian tiger is the largest living representative of felids, and one of the largest felids that have ever lived. 2  It is usually taller than the Bengal tiger by 5-10 cm (2-4 in). 3  Stripes on fur are unique for each individual, they play the same role as fingerprints.
Causes of the Mexican War. Leading causes of the Mexican War included: 1  Texan Annexation. 2  Mexico had warned it would regard annexation as an act of war. 3  When it took place, Mexico did not declare war, but broke diplomatic relations. 4  The Boundary Dispute.
By Martin Kelly. The US Civil War lasted from 1861 to 1865 and led to over 618,000 casualties. Its causes can be traced back to tensions that formed early in the nation's history. Following are the top five causes that led to the War Between the States.. 1. Economic and social differences between the North and the South. With Eli Whitney's invention of the cotton gin in 1793, cotton became very profitable. This machine was able to reduce the time it took to separate seeds from the cotton.