Although these animals are the same species, the difference between them is huge.
The smallest dolphin is the Maui dolphin measuring at about 5.5 feet and weighing just a little over 100lbs. The Orca is actually the largest dolphin (despite being known as killer whales, which they are not) with a length of about 25 feet and weighing in at around 13,000lbs.
The smallest fish in the world is the Paedocypris progenetica, at about 1cm in length, while the biggest one is the ocean sunfish or Mola Mola, which averages about 2200lbs, but can get over 5000lbs and a length of 14 feet across the fins.
The Paedophryne amauensis is the smallest frog in the world at just 0.3 inches long, and also the smallest known vertebrae. The Goliath frog is the biggest weighing in at 7lbs and just over a foot long.
The star pucker pigmy octopus is only half an inch across and weighs 1 gram. The giant octopus weighs about 120lbs and span 20 feet across. The largest ever found weighed 300lbs and spanned 30 feet across.
At just half a millimeter long and almost impossible to see with the human eye, the Patu marplesi is the smallest known spider. The biggest one is the giant Huntsman spider which spans about 12 inches across.
Speckled tortoises only weight about a quarter pound and are 3.5 inches long. Leatherback sea turtles are the biggest turtles weighing in at 1000lbs and spanning 7 feet. The biggest one ever found weighed 2000lbs and was over 7 feet long.
The smallest whale is the dwarf sperm whale and weighs about 550lbs and is about 9 feet in length. The blue whale is the largest whale, as well as the largest animal in the world, and can weigh up to 400,000lbs and span 100 feet in length!
Kitti’s hog nosed bats are the smallest bats with a wingspan of about 5 inches long and weighing in at just about 2 grams. The biggest bats are the Large Flyxing Foxes, and although they only weigh about 2.5lbs, they have a wingspan of about 5 feet.
#18. Wild Cats
The world’s smallest clam is the genus Waldo (named so because they are extremely hard to find due to their size) and measure less than 5 millimeters in length. The largest clam is the Giant clam and weighs about 450lbs with 4 feet in length.