The term “feral hogs” applies collectively to Eurasian wild boars (i.e., Russian boars), domesticated hogs that have become feral, and hybrids of these too. The color of feral hogs usually varies from dark grey to black or brown, but there are great regional differences in color (even whitish animals are known from central Asia).Feral hogs are omnivores, eating both plants and animals (small insects and earthworms). Their continuously growing tusks (the canine teeth) serve as weapons and tools. The upper tusks are bent upwards in males, and are regularly ground against the lower ones to produce sharp edges. In females they are smaller, and the upper tusks are only slightly bent upwards in older individuals.
Feral hog populations have expanded dramatically because they are extremely adaptable and have a high reproductive rate. They are found in 39 of the 50 states, and in Texas they are found in 225 of our 254 counties, with Texas’ population of feral hogs being over 2 million. A female feral hog becomes sexually mature at seven to eight months and can produce 1,000 feral swine in five years. Some feral hogs develop a mane or crest of hair on their necks and backs that can be raised when they are angered. This is the reason for the nickname “razorback.”