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The official San Diego Zoo YouTube account left a now-pinned comment on the video in 2020, stating that they felt honored being featured in the first-ever YouTube video. [24] As of October 22, 2024, it is the most-liked comment on the platform, with 3.9 million likes.
The Paleozoic is a time in Earth's history when active complex life forms evolved, took their first foothold on dry land, and when the forerunners of all multicellular life on Earth began to diversify. There are six periods in the Paleozoic era: Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian. [11]
The age of Earth is about 4.54 billion years; [7] [33] [34] the earliest undisputed evidence of life on Earth dates from at least 3.5 billion years ago according to the stromatolite record. [35] Some computer models suggest life began as early as 4.5 billion years ago. [36] [37] The oldest evidence of life is indirect in the form of isotopic ...
Researchers have uncovered fossils of giant predator worms, some of Earth’s earliest carnivorous animals that roamed the seas 518 million years ago.
The earliest evidence for life on Earth includes: 3.8 billion-year-old biogenic hematite in a banded iron formation of the Nuvvuagittuq Greenstone Belt in Canada; [30] graphite in 3.7 billion-year-old metasedimentary rocks in western Greenland; [31] and microbial mat fossils in 3.48 billion-year-old sandstone in Western Australia.
The site is so well-preserved because an underwater avalanche of fine silt and mud quickly trapped a large group of animals, showcasing the diversity of life living in Earth’s oceans at the time.
The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
Fossil material of Quaestio was discovered in Southern Australia in 2024, from the Ediacara Member at Nilpena Ediacara National Park. [1] At least four trace fossils were discovered as well, some a few centimeters behind the death-mask of the maker, and some without their maker present, showing that the animal was capable of movement, which direction it moved and its anterior and posterior ...