The 10 Largest Animals of All-Time


Scientists believe the Earth is around 4.54 billion years old, but animal life has only been prevalent on Earth since the Cambrian explosion, around 542 million years ago. Since that time, there have been some unbelievably enormous animals that have roamed the Earth. Let’s have a look at the ten largest animals of all-time, classified by type.

The Largest Flying Insect: Meganeuropsis Permiana. It lived 300 million years ago and had a wingspan of over two feet.

The Largest Arthropod: Arthropleura. It lived 340 to 280 million years ago. It was 8.5 feet long and weighed 1,100 pounds.

The Largest Snake: Titanoboa. Fortunately, it lived 60 million years ago, so we don’t have to see it in our nightmares. It was 50 feet long and 3 feet in diameter.

The Largest Land Predator: Spinosaurus. It lived 112 to 87 million years ago. It was 59 feet long and 18,000 pounds. We’re assuming it had an insatiable appetite for meat.

The Largest Cartilaginous Fish: Carchardodon Megalodon. It lived 28 to 1.5 million years ago and looked like a giant Great White Shark (even bigger than Jaws). It was 66 feet long and weighed 103 tons. It was also the largest sea predator of all-time.

The Largest Bony Fish: Leedsichthys Problematicus. It lived 170 million years ago, was 70 feet long, and weighed 50 tons. It also had a pretty cool name.

The Largest Land Mammal: Paraceratherium. Living 37 to 23 million years ago, it looked like a giant cross between a horse and a giraffe. It was 26 feet tall and weighed 30 tons.

The Largest Flying Organism: Quetzalcoatlus. 20 feet tall with a 52.2 foot wingspan. It weighed 550 pounds. We can’t imagine the shadow this thing created as it patrolled the skies of prehistoric Earth. Creepy.

The Largest Mammal:
The Blue Whale. It’s still the largest animal known to date. First appearing 50 million years ago, they’re still around today. At 98 feet long and 180 tons, these are absolutely incredible creatures.

The Largest Land Animal: Amphicoelias Fragillimus. It lived 150 million years ago, was 190.3 feet long, and weighed 122 tons.

Learn more about the ten largest animals of all-time in the video below.