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Along with the common chimpanzee, the bonobo is the closest extant relative to humans. [4] As the two species are not proficient swimmers, the natural formation of the Congo River (around 1.5–2 million years ago) possibly led to the isolation and speciation of the bonobo. Bonobos live south of the river, and thereby were separated from the ...
The first known mass extinction was the Great Oxidation Event 2.4 billion years ago, which killed most of the planet's obligate anaerobes. Researchers have identified five other major extinction events in Earth's history, with estimated losses below: [11] End Ordovician: 440 million years ago, 86% of all species lost, including graptolites
In human genetic studies, the CHLCA is useful as an anchor point for calculating single-nucleotide polymorphism (SNP) rates in human populations where chimpanzees are used as an outgroup, that is, as the extant species most genetically similar to Homo sapiens. Despite extensive research, no direct fossil evidence of the CHLCA has been discovered.
Human activity is a big part of the problem when it comes to threats to the Sumatran orangutan. Some threats can be reversed with the enforcement of current laws and habitat conservation efforts.
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 ...
Acanthostega is an extinct tetrapod, among the first animals to have recognizable limbs. It is a candidate for being one of the first vertebrates to be capable of coming onto land. It lacked wrists, and was generally poorly adapted for life on land. The limbs could not support the animal's weight.
Photographer Tim Flach is renowned for his photos that show the more human side of suffering animals. Stunning new photos show the faces of animals on the verge of extinction Skip to main content
Earth’s “normal” extinction rate usually hovers around 0.1 and 1 species per 10,000 species over 100 years, according to the World Wildlife Fund. Now, that number is thousands of times higher.