The biggest cat in the world is the Siberian tiger, also known as the Amur tiger. This majestic feline can weigh up to 660 pounds and measure over 10 feet in length, including its tail. Siberian tigers are native to the forests of eastern Russia, China, and North Korea, and are known for their distinctive orange and black stripes.

Siberian tigers are apex predators, meaning they are at the top of their food chain and play a vital role in maintaining the balance of their ecosystem. They are solitary animals, except during mating season, and typically hunt large prey such as deer, elk, and wild boar. Siberian tigers are also excellent swimmers and are known to cross rivers and lakes in search of food.