Loudest Animal Sound
Blue Whales (Balaenoptera musculus), fin whales (Baleonoptera physalus) The low frequency communication pulses emitted by Blue Whales and Fin Whales have been measured at 188 decibels, making them the loudest sounds emitted by any living creature. A jumbo jet taking off, by contrast, measures 120 decibels.
Howler Monkeys (Alouatta) of South America are the noisiest land animals in the world. Their calls, a cross between a dog's bark and a donkey's bray, can be heard clearly for up to 3 miles away.
Biggest Bird
North African Ostrich (Struthia camelus camelus), the largest living bird. This flightless bird can reach 9' in height and weight 345 lbs.
Fastest Birds
Peregrine Falcon (Falca peregrinus) is the fastest living creature, which can reach speeds of at least 124 mph when stooping from great heights during territorial displays and when hunting.
Ostrich is the fastest bird on land, despite its size it can run at speeds up to 45mph.
The Smallest Primate
Pygmy Mouse Lemur (Microcebus myoxinus) is the smallest primate and lives in western Madagascar. It's head-and-body length is measured at 2.4" with a tail length of 5.4" and an average weight of 1.08 oz.
The Smallest Bird
Hummingbirds (Mellisuga helenae) Living in Cuba and the Isle of Pines, the male bee hummingbirds (Mellisuga helenae) are just 2.2" long and weigh 0.056 oz.
Smallest Fish
Dwarf Goby (Trimmatom nanus) is the smallest marine fish and shortest known vertebrate and is found in the Indo-Pacific region. Its average length is 0.339" for males and 0.35" for females.
Dwarf Pygmy Goby (Pandaka pygmaea) is the shortest and lightest freshwater fish. It is a colorless and nearly transparent species found in the streams and lakes of Luzon in the Philippines. Males have an average length of 0.343" and weigh 0.00014-0.00018 oz.
The Fastest Fish
Cosmopolitan Sailfish (Istiophorus platypterus) is the world's fastest species of fish over short distances. It has been officially measured to have a velocity of 68 mph. The cheetah's top speed, by contrast, is 62 mph
Smallest Amphibian
Frog (Eleutherodactylus limbatus), is the smallest known amphibian, found in Cuba which measures just 0.33-0.47" from snout to vent.
Biggest Amphibian
Chinese Giant Salamander (Andrias davidianus) lives in the mountain streams of northeastern, central and southern China, and is world's biggest amphibian. The largest specimen on record was 5' 11" long and weighed 143 lbs.
Smallest Spider
Patu Marplesi is the smallest known spider, it is in the family Symphytognathidae from Western Samoa. A male found has an overall length of just 0.017 in.
Biggest Spider
Goliath Bird-eating Spider (Theraphosa leblondi) is the world's biggest spider. It lives mainly in the coastal rainforests of Surinam, Guyana, and French Guiana. Two specimens with a leg-span of 11" have been recorded.
Biggest Crustacean
Taka-ahi-gani or Giant Spider Crab (Macrocheira kaempferi) The largest specimen on record weighed in at 41 lbs and had a claw-span of 12' 2".
Shortest Snakes
Thread Snake (Leptotyphlops bilineata) & Brahminy Blindsnake (Ramphotyplops braminus) both have a maximum length of 4.25" making them the shortest snakes in the world.