I am nervous about asking as I suspect I'll be directed to conspiracy theorist websites and YouTube videos, but why do you believe this?
There just wasn't enough time for us to "evolve"
Before humans walked this earth there were five mass extinctions.
Although the Cretaceous-Tertiary (or K-T) extinction event is the most well-known because it wiped out the dinosaurs, a series of other mass extinction events has occurred throughout the history of the Earth, some even more devastating than K-T. Mass extinctions are periods in Earth's history when abnormally large numbers of species die out simultaneously or within a limited time frame. The most severe occurred at the end of the Permian period when 96% of all species perished.
The
Permian period, which ended in the largest mass extinction the Earth has ever known, began about 299 million years ago. The emerging supercontinent of Pangaea presented severe extremes of climate and environment due to its vast size. The south was cold and arid, with much of the region frozen under ice caps.
This along with K-T are two of the Big Five mass extinctions, each of which wiped out at least half of all species.
This along with K-T are two of the Big Five mass extinctions, each of which wiped out at least half of all species.
The Miocene Epoch was characterized by major global
climatic changes that led to more seasonal conditions with increasingly colder winters north of the Equator.
The earth went from the Oligocene through the Miocene and into the Pliocene, with the climate slowly cooling towards a series of
ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regional boundaries between the warmer Oligocene and the cooler Pliocene Epoch.
https://en.wikipedia.org/wiki/Miocene
An
ice age is a period of long-term reduction in the temperature of
Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar
ice sheets and alpine
glaciers. Within a long-term ice age, individual pulses of cold climate are termed "
glacial periods" (or alternatively "glacials" or "glaciations" or colloquially as "ice age"), and intermittent warm periods are called "
interglacials". In the terminology of
glaciology,
ice age implies the presence of extensive
ice sheets in both northern and southern hemispheres.
[1]By this definition, we are in an interglacial period—the
Holocene—of the ice age. The ice age began 2.6 million years ago at the start of the
Pleistocene epoch, because the
Greenland,
Arctic, and
Antarctic ice sheets still exist
Earth,
biodiversity has gone through long periods of expansion, occasionally punctuated by
mass extinction events. Over 99% of all
species[32] that ever lived on Earth are
extinct.
[33][34]
https://en.wikipedia.org/wiki/Earth
The next well-documented ice age, and probably the most severe of the last billion years, occurred from 850 to 630 million years ago
(the
Cryogenian period) and may have produced a
Snowball Earth
The
Snowball Earth hypothesis proposes that
Earth's surface became entirely or nearly entirely frozen at least once, sometime earlier than 650
Mya (million years ago).
which glacial ice sheets reached the equator,
[33] possibly being ended by the accumulation of
greenhouse gases such as CO2 produced by volcanoes. "The presence of ice on the continents and pack ice on the oceans would inhibit both
silicate weathering and
photosynthesis, which are the two major sinks for CO2 at present."
[34] It has been suggested that the end of this ice age was responsible for the subsequent
Ediacaran and
Cambrian explosion, though this model is recent and controversial.
https://en.wikipedia.org/wiki/Ice_age#Glacials_and_interglacials
There just wasn't anything for us to evolve from?
Monkeys still exist today so we did not come from them,
so where then?
OK, I did check to make sure this wasn't in the jokes section! That was funny!
