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Largest Animals in the World

By Edited Jul 2, 2015 1 1

What are the largest animals in the world? There are many ways to define 'largest' or the size - it could be the length, the height or the weight, among many other things. However, the most commonly used measure is the weight. Based on this, which are the largest animal in each common category of animals (e.g. mammals, birds, etc)?

Animals / Mammals

The largest animal (and also largest mammal) is the Blue Whale. The largest recorded example had a length of 33.58 metres (110 feet 2 inches), and weighed 190 metric tons (or 190,000 kg)!

The largest land animal by weight is the African Bush Elephant. The largest known example weighed 12.2 metric tons (or 12,200 kg), with a length (from trunk to tail) of 10 metres (33 feet) and a shoulder height of 4.12 metres (13.5 feet).


The largest reptile by weight is the Saltwater Crocodile. It can be found in Southern Asia and Australia. Adult males are typically 3.9 – 5.5 metres in length, and the largest recorded example had a length of 6.3 metres (20 feet 8 inches) and weighed over 1,360 kg (3,000 lbs).

The largest snake by weight is the Green Anaconda, found in tropical waterways. The largest recorded example weighed 250 kg (550 lbs), with a length of 7.5 metres (25 feet). The largest snake by length (i.e. the longest snake) is the Reticulated Python, found in Southeast Asia. The longest Reticulated Python recorded had a length of 9.7 metres (32 feet).

The largest lizard by weight is the Komodo Dragon, found only in the Komodo islands of Indonesia. The largest example recorded had a length of 3.13 metres (10 feet 3 inches) and a weight of 166 kg (366 lbs).


The largest bird is the Ostrich, which can be found in the plains of Africa and Arabia. A large male ostrich can be as high as 2.8 metres (9.2 feet) and weigh as much as 156 kg (345 lbs). Incidentally, the eggs laid by the ostrich are the largest in the world today, at 1.4 kg (3 lbs).

Female Ostrich


The largest amphibian is the Chinese Giant Salamander, which can be found in rivers. It can weigh as much as 64 kg (140 lbs) and have a length as long as 1.83 metres (6.0 feet).


The largest fish is the Whale Shark, found in tropical oceans. The largest recorded example had a length of 12.7 metres (42 feet) and a weight of 21.5 tons (21,500 kg). Although it is a shark, it is actually not a carnivore – it is docile and feeds on plankton (like whales).

Source: Wikipedia



Feb 4, 2012 7:02am
Great informative article. Actually a woman Krys Pawlowski shot the biggest ever on record it was 8.3 metres long and a lifesize model is mounted in Normanton in Queensland. They called it the savanagh King.

We saw the model in 2009 and it was huge. We have a photo of it with our blue Heeler up actually sitting up inside its jaws.
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  1. "Largest Organisms." Wikipedia. 5/01/2012 <Web >

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