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Spineless animals, like invertebrates, have existed on Earth for at least 550 million years, with various groups diversifying and multiplying at different points in time. Significant radiations of spineless animals occurred during the Cambrian explosion around 540 million years ago, marking a rapid increase in diversity and abundance.

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This era has been called The Age of Animals?

Animals? Animals filled the seas beginning in the Cambrian, and made their way onto land in the Devonian. The current age (Cenozoic) is the age of mammals, but animals (mainly dinosaurs) ruled the Mesozoic land, while fish reigned supreme in the Paleozoic.


During Which age did humans learn domesticate plants and animals?

I believe sometime in the New Stone Age humans had learned to tame and breed animals for their own use.


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The era for the age of dinosaurs is called the mesozoic era.


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The Cenozoic Era is the Age of Mammals!


What is the time or era for Age of Mammals?

The Cenozoic Era is the Age of Mammals!


What era has been called the Age of Mammals?

This era, the Cenozoic era, is the age of mammals. But among botanists and paleobotanists, it is known as the age of flowers -- the anthophyta.The extinction of the dinosaurs of the Mesozoic Era allowed mammals to proliferate and diversify.


What era did the ice age started?

The Ice Age started in the Pleistocene era.


Why is the Cenozoic era called the age of mammals?

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Yes, the terms "New Stone Age" and "Neolithic era" are often used interchangeably to refer to the same time period in human history. The Neolithic era is characterized by the development of agriculture, the domestication of animals, and the use of polished stone tools. It marks a significant shift from the Paleolithic era, or Old Stone Age, where humans relied primarily on hunting and gathering for survival.


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If you mean animals as in insects (arthropods), they came in around the Devonian period of the Paleozoic era If you mean animals as in fish, amphibians etc then they came in at the same time as the arthropods


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The Paleolithic era is also referred to as the Stone Age.