They vary in size from very large animals to small animals that are invisible to the eye.
Some animals, however, grow large enough to overtake the average size.
The US ranking site 'The Richest.com' (Therichest.com) has selected 15 species of ultra-large animals that exist in the world.
There is nothing that does not attract attention, such as dogs over 2m in length and snakes in excess of 7m in length.

15 .Goliath Shovel Tarantula Spider
It is the world's largest spider. The body length is about 10 centimeters and the weight is about 175 grams. It feeds frogs, lizards, and small birds.

14.Great Dane Dog (Zeus)
The Great Dane named Zeus, the world's largest dog on the Guinness Book of Records. The body height is about 111 ㎝, and the body length is about 223 ㎝.

13.African Giant Snail
The world's largest snail. The shell length is about 20 cm and the diameter is about 7 ~ 8 cm. It is known to eat everything from plants to carcasses of animals, and it is known to eat concrete to supplement calcium in shells

12.Continental Giants Rabbit (Darius)
A large rabbit Darius growing up to 131 cm in length. His child rabbit Jeff also grew to 110 cm. These rich rabbits only eat 2,000 carrots and 700 apples a year.

11.Chinese longevity salamander
It is the largest among longevity salamanders. The length of the body exceeds 180 centimeters. The American longevity salamander grows to about 150 cm.

10.Main Kuhn Cat (Rudo)
The main Kuhn cat named Ludo reached a height of 114 cm at 17 months of age. Since then, the length of this cat was 123 cm.

9.Goliath Frog
It is the largest frog in the world. The length of the body is about 17 ~ 32 ㎝, and the length including the limb is as much as 80 ㎝, and the body weight is known to go up to 3 ㎏.

8.Belgian Gidding Horse (Big Jake)
A 210 cm tall horse named Big Jake. The breed is Belgian gelding and weighs a whopping 1179 kilograms.

7.Ryger (Hercules)
A hybrid of lion and tiger. Named Heracles, the ligger measures 3.3 meters in length.

6.Japanese Spider Crab
The world's largest crab with a length of 3.8m when the bridge is extended. The shell is only 40 cm.

5.Holstein cow (blossom)
The largest cow in the world, the Holstein cow named Blossom with the name Blossom on the Guinness Book of World Records. The height is about 192 cm.

4.Stingray
An American animal expert, Jeff Corwin, takes a 4.2 meter long stingray in Thailand. The weight was about 360 kg.

3.The net pattern python (Medusa)
A netted python about 7.6 meters in length found in the state of Missouri. It was the largest snake in the world and was in the Guinness Book of World Records.

2.Sea crocodiles (Laurent)
In 2011, the sea crocodile, named Ro Long, was caught in the Philippines in three weeks. It is 6.17 meters long and weighs more than 1 ton.

1.Pig (Big Bill)
The giant pig named Big Bill has an enormous record of 274 cm in body length, 152 cm in height and weighs 1157 kg