What is the world's largest species of cat by weight?

The world's largest cat by weight is the Siberian tiger (Panthera tigris altaica), also known as the Amur tiger. Adult male Siberian tigers can weigh up to 660 pounds (300 kg) and measure up to 10 feet (3 meters) in length, making them one of the biggest wild cats on the planet.

Siberian tigers are native to the eastern regions of Russia and parts of China and North Korea. They are known for their thick fur and large, muscular build. These cats are apex predators and are capable of taking down large prey such as elk, deer, and wild boar.

While Siberian tigers are the heaviest cats, they are not the longest. That title goes to the South American jaguar (Panthera onca), which can grow up to 7 feet (2.2 meters) in length.