There are many different kinds of tigers found around the world. The biggest type of tiger is the Siberian tiger.
what is the variety of life found on Earth and the variations within species is called
1.4 million plants exist on earth
250,000
No, giraffes do not harm the Earth. No species in its proper ecosystem is harmful to the Earth as a whole. Rather, every species in its natural ecosystem helps to support the ecosystem. The only exception to that rule is humans.
It is estimated that there are approximately 390,000 species of plants on Earth. This number includes a wide variety of plants, ranging from tiny mosses to towering trees.
dinosaurs
Many people would argue that no one species was on the Earth before another species. These people believe in creationism.
Zoegrass
The human species that appeared first on Earth is Homo habilis, followed by Homo erectus, then Homo sapiens (modern humans).
Coelophysis,Pterosaure and Technosaures.
Porpoises are not actually dolphins, they are both different branches of sea mammals known as ceteceans but they are not the same so in answer to your question porpoises were not the first dolphin species on earth because they are not a dolphin.
about 18,492,002 species consists on earth
The dinosaurs are one of the species that has disappeared from the earth.
It was celophysys a small dinosaur that hunted in groups and ate fish.
The first known species to appear on Earth were single-celled microorganisms like bacteria and archaea. These simple life forms emerged around 3.5 billion years ago.
the first person to live on earth was adem and eve
There are approximately 8.7 million species currently on Earth.