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During the Silurian era the first simple animals began to appear on land. It is thought that this is due to the development of the Ozone layer protecting non-aquatic life for UV radiation. (This refers to the appearance of animals on dry land. Animals in the sea existed long before.)
In the late pre-cambrian multi-cellular life appear in the sea due to the presence of high oxygen level in the atmosphere.
Here is another:
A small micro organism, having single cell born in sea, it had characteristics of both plant and animal. Hence it is the first plant as well as first animal. Some millions of year back.
The first known fossils of what is possibly animal life appear in the Ediacara biota just prior to the Cambrian era. ca. 635-542 Ma
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Wiki User
∙ 11y ago
Wiki User
∙ 13y agoBy looking at fossil records and using various dating methods, scientists have been able to estimate that the earliest and most primitive animals evolved around 570 million years ago.
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What was the first animal to appear on the US coin?
horse
Why is the quokka sometimes referred to as the happiest animal on Earth?
Although much research has been done, there does not appear to be any information as to why the Quokka is referred to as the happiest animal on Earth. It is a small animal that is extremely friendly and is not afraid of humans. The animal is also very cute and adorable and almost looks to be smiling.
What was the first animal on earth discovered by man?
The earliest organism in Earth's fossil record that qualifies as an "animal" is likely a 760 million year old microscopic sponge Otavia antiqua discovered in African rock.
Who is lyka the space dog?
a russian dog and the first animal to orbit the earth ( first animal to go on the moon ) * * * * * Laika (Lyka?) did not go to the moon.
What was the first animal to walk on the earth?
With legs, probably soft bodied worms .
How much is the first animal on the Earth?
the first animal on the earth is a Dinosaur's
How did the first animal appear?
Magic
How did the squid appear on earth?
It was farted out of a polar bearFrom the animal organization
What was the first animal to appear on the US coin?
horse
What animal is believed to be the first to appear on land?
Dinosaurs
Who was the first animal to live in earth?
unicellular animal.
Where did Arthropods first appear on earth?
yes
What is the first animal on earth?
bacteria
What is the first animal appear?
bacteria by;daryll s espinosa
When did they launched the first animal into space?
in 1957 laika was the first animal to orbit the earth
What is another name for first animal?
First animal on the Earth was a jellyfish. See below-
When did the first ladybug appear on earth?
Chick or the egg!
