Examlex
What is "degenerate" in the degenerate core of a white dwarf?
Neanderthals
An extinct species or subspecies of archaic humans who lived in Eurasia until about 40,000 years ago, closely related to modern humans.
Coexisted
Refers to the occurrence of two or more species, populations, or entities living together in the same environment at the same period in time.
Darwin
Charles Darwin, a 19th-century naturalist known for his contributions to the science of evolution and the theory of natural selection.
Billion Years
A time span equivalent to 1,000 million years, often used in the context of Earth's age or the time span of cosmic events.
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