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.
The Mexican-American War and Mexican Cession Manifest Destiny (the belief that it is Americaâs obvious fate to spread west) Cause #1 began to sweep the nation in the 1840s as thousands of Americans took to the trails leading westward- Oregon Fever When Democrat President James K. Polk won the Election of 1844, Texas and Oregon were soon annexed as ...