Tests to diagnose Crohn's disease include: 1  Barium enema or upper GI series. 2  Colonoscopy or sigmoidoscopy. 3  Computed tomography (CT scan) of the abdomen.  Endoscopy, including capsule 1  endoscopy. Magnetic resonance imaging (MRI) of the abdomen.  Enteroscopy.
Most species in this family sever the spinal chord of their prey with their canines. Species in this family have rounded heads and short muzzles. They have excellent eyesight and hearing and a good sense of smell. The big cats in this family, like the lion, tiger, jaguar and leopard, can roar, but they can not purr.
The biggest species of the cat family, the tiger is a solitary hunter. They can reach 3.3 meters and weigh up to 300lbs. They stalk their prey and hunt at night. Like lions, they tend to bite the throat of their prey to cut the flow of air and blood to the animals head. They have a powerful bite, nearly twice that of the lion. There are more tigers in captivity than in the wild.