what is the biggest animal in the world?

Answer 1

Blue whale

By considerable measure, the largest known animal on Earth is the blue whale. Mature blue whales can measure anywhere from 75 feet (23 m) to 100 feet (30.5 m) from head to tail, and can weigh as much as 150 tons (136 metric tons). That's as long as an 8- to 10-story building and as heavy as about 112 adult male giraffes! These days, most adult blue whales are only 75 to 80 feet long; whalers hunted down most of the super giants. Female blue whales generally weigh more than the males. The largest blue whale to date is a female that weighed 389,760 pounds (176,792 kg).

A blue whale's head is so wide that an entire professional football team -- about 50 people -- could stand on its tongue. Its heart is as big as a small car, and its arteries are wide enough that you could climb through them. Even baby blue whales dwarf most animals. At birth, a blue whale calf is about 25 feet (7.6 m) long and weighs more than an elephant. And they do grow up fast: During the first 7 months of its life, a blue whale drinks approximately 100 gallons (379 liters) of its mother's milk per day, putting on as much as 200 pounds (91 kg) every 24 hours. An adult blue whale can eat more than 4 tons (3.6 metric tons) of krill, a tiny shrimp-like creature, every day.

This puts blue whales well above any known land mammal in terms of size. Most people believe that the largest animals to ever exist on Earth were the dinosaurs. However, one of the largest land dinosaurs, the sauropod Argentinosaurus, weighed only about 180,000 pounds (81,647 kg). That's little more than half the size of an adult blue whale. It makes a lot of sense that the world's largest animal would be a sea creature. Land animals have to support their own weight, whereas sea creatures get some help from the water.

It is believed that at one time there were more than 200,000 blue whales. There are only about 10,000 blue whales now -- they've been on the endangered list since the mid-1960s -- and the population is not expected to recover.

Animal Facts
* Largest animal - Blue whale
* Loudest animal - Blue whale
* Largest land animal - African elephant
* Loudest land animal (second-loudest animal) - Howler monkey
* Tallest mammal - Giraffe
* Fastest mammal - Cheetah
* Fastest air-traveling animal - Peregrine falcon
* Smallest mammal - Bumble-bee bat
* Longest snake - Reticulated python

Answer 2

A member of the order Cetacea, the Blue whale (Balaenoptera musculus) is believed to be the largest animal ever to have lived. The maximum recorded weight was 190 tonnes and 30 m (100 ft) long, while several longer ones, up to 33.3 m (110 ft), have been seen but not measured.

Answer 3

A whale shark, I believe. Blue whale is the biggest mammal.. but if I recall right... the whale shark is even bigger. It's a fish that, for its great size, only eats plankton.

Here is a page that has some pics... prob'ly says somewhere on there whether it is the biggest animal or not...
http://www.extremescience.com/BiggestFish.htm

EDIT: Just checked... nope. It's the blue whale! Guy above me got it!

Answer 4

Blue whale is the largest creature on this earth.It's size is equal to the size of 36 elephants!!!!!!!!!!.According to scientists it's considered to be an mammal &used to live on the earth surface billion years ago.But due to Ice age and the unavailability of food forced these extraordinary creatures to take shelter in the greatest depths of ocean.There are many Interesting facts about these animals that their heart's size is alone equal to a size of an truck engine and they have lungs instead of gills for Breathing

Answer 5

the blue whale is the biggest animal however on land-african elephant

Answer 6

Blue Whale (Balaeonptera musculus) is the biggest animal.....use this link to get more info
school.discovery.com/schooladventures/planetocean/bluewhale.html

Answer 7

The blue whale. Animals in the sea don't have to support their weight in water so they can grow really big.

Answer 8

Portuguese Man Of War (Jellyfish) its' tentacles have been reported at over 100 feet in lenght. I bet all answered blue Whale!!
largest would be whale,
longest would be man of war,
you choose, or clarify question.

Answer 9

I think dianosours are the biggest animal in the world

Answer 10

The blue whale.