Which creature is the largest, flying in the sky, walking on the ground or swimming in the sea? Of course, since it is a creature, we can't ignore plants. In the 4.55 billion years of life on earth, life on earth began to originate 3.8 billion years ago. 3.5 billion years ago, photosynthesis appeared, represented by cyanobacteria. Cyanobacteria is the oldest living thing on the earth and the oldest cyanobacteria fossil, which was found in Archaean rocks in Western Australia about 3.5 billion years ago. Cyanobacteria is the hero of life on the earth and the earliest photosynthetic oxygen-releasing organism on the earth, which plays an irreplaceable role in the production of oxygen in the earth's atmosphere.

From the plant's point of view,

Plants, there are plants on land and plants in the sea, but so far, no bigger plants have been found in the sea, and there are countless bigger plants on land. In Sequoia National Park in California, USA, there is a giant sequoia with a tree age of about 2,300 ~ 2,700 years. This kind of tree is called General Sherman Tree, which is also translated as General Sherman Tree or General Sherman Tree. It was named by naturalist Jim wolverton in 1879, so it was named in memory of General William tecumseh Sherman during the Civil War.

Basic parameter

Tree height: 83.8 meters;

Maximum diameter of tree bottom:11.1m;

Crown width: 32.5 meters;

Estimated gross weight: about 2800 tons.

Although General Sherman is the largest tree in the world, it is not the oldest tree in the world. The oldest tree was found on a fir mountain in central Sweden. According to scientists' calculations, this spruce is over 9500 years old.

Judging from the animals on land.

The behemoths on the land were concentrated in the dinosaur era. Nowadays, people can't see the shocking giant creatures in reality. At present, the largest elephant on land is the African elephant, which usually weighs less than 65,438+00 tons. Compared with those dinosaurs, it is simply weak. Speaking of the largest dinosaur, many people want to mention the fragile double-chambered dragon, but whether the fragile double-chambered dragon is the largest dinosaur is still controversial, because the fossils found now are incomplete, so the academic circles have different views, so we will not discuss the fragile double-chambered dragon. In addition, the first one is the Argentinean dragon. Its fossils are relatively complete and the evidence is sufficient. Many key fossils have been found, such as ribs, spine and femur. It is estimated that its body length is between 35 and 40 meters and its weight is about 90 tons.

I think this body length and weight is the limit on land, because the creatures on land are not as free as those in the ocean. In the ocean, buoyancy and gravity are directly proportional to the volume, so for the creatures in the ocean, as long as the density remains unchanged, they don't need to consume too much energy to support floating in the sea. On land, it's different. It is supported by its own spine. The greater the weight of animals on land, the greater the force on their supporting structures. Imagine what kind of feet such a land animal should have.

Judging from the animals in the ocean.

To talk about the largest creature in the ocean, many people also want to mention this New Zealand big fish dragon. It is said that in 1878, a paleontologist found several huge bone fossils near the bank of Marburg, New Zealand. At that time, biologists identified them as the bones of ichthyosaurs, so they speculated that this ichthyosaur was 28-38 meters long and weighed 200-400 tons. But unfortunately, because the fossils excavated at that time were not well preserved and the original data were lost, many biologists now have great disputes about the existence of New Zealand sauropod. So aside from the controversial New Zealand sauropod, the largest creature in the ocean is the blue whale, with a body length of 33 meters and a weight of 18 1 ton.

These are just the current data, and with the emergence of more discoveries, their first position may be lost at any time.