The Mydas fly (Gauromydas heros) is the world's largest fly. It can reach body lengths of 2.8 inches (7 centimeters) and a wingspan of 4 inches (10 centimeters). Mydas fly are found in arid and semiarid regions of the world, but are infrequently encountered as the adult lifespan can be quite short.

Here are the most accurate measurements of the ocean's biggest animals. These are confirmed measurements, unlike many found on the internet that state outrageous numbers.

Rhino beetles and other ginormous bugs are kept as pets, used in gambling fights, and also eaten as food. You've got to see the size of these things!

According to this poster, a giant panda mom is 900 times more massive than her baby, while a giraffe baby is one-tenth the size of its mom!

The long-lasting search and debate around the size and identity of the world's smallest free-living insect seems to have now ended with the precise measurement and second record of the featherwing beetle species (Scydosella musawasensis). Described in 1999, representatives of this minute beetle have recently been retrieved once again from fungus in Colombia. The smallest individual measured the astounding 0.325 mm. ...

Aside from claiming the title of the largest animal known to have ever lived, the blue whale (Balaenoptera musculus) possesses a heart big enough to house a human. The heart of an average sized blue whale weighs 180 kg (400 lb) and is also the largest known in any animal.

During the first seven months of its life, a blue whale calf drinks approximately 380 litres (100 US gal) of milk every day. Blue whale calves gain weight quickly, as much as 90 kilograms (200 lb) every 24 hours. Even at birth, they weigh up to 2,700 kilograms (6,000 lb) - the same as a fully grown hippopotamus.

Blue whales have proportionally small brains, only about 6.92 kilograms (15.26 lb), about 0.007% of its body weight, although with a highly convoluted cerebral cor ...