When We Met Other Human Species

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PBS Eons
PBS Eons - 3 months ago
Some commenters have pointed out that calling Neanderthals and Denisovans “other hominin species” in this episode breaks the rules of the biological species concept (BSC), which says if two things can interbreed, then they’re the same species. Some paleoanthropologists would agree. They consider both Neanderthals and Denisovans to be subspecies of Homo sapiens, rather than separate species. Other experts would say that Neanderthals have a set of features that make them clearly distinguishable from Homo sapiens, putting them outside the range of variation we include in our species. And we hardly know the Denisovans - like we said in the video, they don’t even have a scientific name yet.

The incredible thing about this is that we can even think about applying the BSC to fossils at all. The BSC is a species concept based on living organisms, and it’s only been within the last two decades or so that we’ve had the ancient DNA and the technology to test hypotheses about interbreeding in extinct groups. And it’s not the only way to define a species, either, so it will likely be a while (if ever) before anthropologists decide whether we’re a different species, subspecies, or population from the Neanderthals and Denisovans.

(Darcy Shapiro, PhD, script editor)
pauldh62 - 25 minutes ago
@Warner Losh My limited understanding is that a dog and a wolf are actually one and the same in terms of species. The former, however, has been subject to generations upon generations of selective breeding. The only problem one would have with trying to mate a dog and a wolf out of the laboratory would be preventing the wolf eating the dog -they do.
Delphinium Flower
Delphinium Flower - 3 hours ago
@Andrew Howard The key question is, can you breed a Scandinavian with a Pygmy?
Doriamo - 12 hours ago
There are interspecies hybrids in nature. Look at Cuora seratta for example that comes from two separate turtle species within two separate genera. The hybrids are fertile too!
nunya biznez
nunya biznez - 19 hours ago
They were all the same species. Call them sub species if you wish but all the same species for the reasons you pointed out plus look at dogs. If you lined up all the different officially recognized breeds of domestic dog and you were not otherwise informed, you would conclude you were looking at a group of various species belonging to the same genus or even family. A chihuahua next to a great Dane do not look like the same species. A poodle next to a greyhound next to a bulldog likewise. Yet they are. The argument that they are separate species due to a difference in morphology is invalid as cited in my example with dogs. I use dogs because it is the species we are most familiar with. I could cite the mollusk Melongina Corona a type of sea snail that varies greatly in appearance and adult size yet can of course interbreed successfully. I could cite hundreds of species with far more variation than hominins. So stating that the different hominins are different species due to their difference in morphology is an invalid argument.
null -
null - - 2 days ago
Bananas are choms choms.
flint the kaka harris
flint the kaka harris - 10 minutes ago
Proof we have nothing in common with Africans.
beth, i guess
beth, i guess - 3 hours ago
i love learning about this stuff. it makes me sad knowing that no other hominids are alive anymore... humans are so lonely. id love to have a close relative species :-( i wish i could go back in time to meet some neanderthals or denisovans
jayrozzle - 4 hours ago
Even though I already know none of this is 100% accurate; are you telling the people that descendants from Africa don't have any DNA coming from Neanderthals 😬🤫.. Maybe Darwin was right about evolution.. Just not talking about Africa or its descendants.. Neanderthals are cavemen. Very similar to primates. T
Mr Pickles
Mr Pickles - 5 hours ago
1:06 Explains how we have The Hipster breed of hominin today.
Co Si
Co Si - 5 hours ago
There are not any more because of interbreeding.
JB - 6 hours ago
If DNA attributes are derived from longevity of one's life (more intercourse) spreading the DNA. Then are modern humans destined to fail if we only pass along DNA through what monetary means we derive in life presently. In short... if a bunch of rich idiots have greater means in life than genius poor population are we destined for failure as a species?
Marlon Hernandez
Marlon Hernandez - 6 hours ago
So we’re all mutants X
IAMDIMITRI - 7 hours ago
We absorbed them
Erin Young
Erin Young - 9 hours ago
Why doesn't Steve have a last name?
Tony Scar
Tony Scar - 9 hours ago
I think pbs eons is forgetting about the ultimate hide and seek champion. Bigfoot.
Doriamo - 12 hours ago
There are interspecies hybrids in nature. Look at Cuora seratta for example that comes from two separate turtle species within two separate genera. The hybrids are fertile too!
Jeremy X
Jeremy X - 13 hours ago
You come frome easu
Al King
Al King - 13 hours ago
They all had man buns back then?
Nicolas Licastro
Nicolas Licastro - 14 hours ago
-That looks like a person, i will reproduce with it
silver watcher
silver watcher - 15 hours ago
I may have done a DNA thingy and it said I have 5% Neanderthals and I'm 6"2 and come from 7ft grandparents and what not so this midget claim maybe there were giant Neanderthals we just haven't found them. Cause other wise explain a giant with midget Neanderthals 5% DNA family bloodline.
Ma n
Ma n - 17 hours ago
We were the rat and rabits. heheheh We breed like rabits, f0ked everyone even other humans like Neanderthal. We spread to every part of the earth like rats.
AlexanderGreat15 - 17 hours ago
Natural Heel
Natural Heel - 19 hours ago
PBS always keeps it coming
Brandyce Wonderland
Brandyce Wonderland - 19 hours ago
The only time it was ok to have sex with other species.
nunya biznez
nunya biznez - 19 hours ago
I would like to point out that Neanderthals and certain other hominins probably did not go extinct.  Their much smaller populations merely got absorbed into the larger Homo sapiens population.  This fits in with the small bits and pieces of their DNA found in our genome.  And how do we know they are in fact hominin DNA sequences in our genome?  Perhaps its our DNA sequences that scientists found in their genome.   I personally think too many scientists jump to conclusions without thinking logically through the evidence.  How do we really know which group gave their DNA to the other.  Most likely there was a lot more DNA swapping going on throughout our prehistory that we do not know about.
Logan Hoomana
Logan Hoomana - 19 hours ago
Imagine how roasted an old school human would get for banging a Neanderthal. I cant even bang 7 without getting shot from my friends
J Diddle
J Diddle - 20 hours ago
Not at all on topic but someone needs to form an a cappella group called The Harmonins immediately!
EZZY GREZZY - 20 hours ago
Gtf you ppl speculate everything about history
Nacho Gallagher
Nacho Gallagher - 21 hour ago
A fourth subspecies has been recently identified.
Jacinth Gudetti
Jacinth Gudetti - 22 hours ago
So basically... dwarven people = neanderthal
Neil Dennis
Neil Dennis - 23 hours ago
Shouldn’t this title end with, “...We Exterminated Them.”
T0nyMc716 - Day ago
Why are we the only ones left....lol have you met us??? I'm pretty we just killed them all....or went back to their home planet
Gabriel A. Zorrilla
Cima is not pit, is hill.
Ludwig Talbott
Ludwig Talbott - Day ago
Some of you have more neanderthal dna than Elizabeth Warren has Native American dna.
The Void Looks Pretty
I hope when they sequenced the Neanderthal DNA, they were like, “Let’s see if it’s like us,” and one guy immediately cut his arm with a scalpel and ran it through the computer.
Lando Calrissian
Lando Calrissian - Day ago
Glad my ancestors didn’t....yikes.
Doc Cadvie
Doc Cadvie - Day ago
Also the fossil record shows that all of our ancestors rocked manbuns
Doc Cadvie
Doc Cadvie - Day ago
They were on the paleo diet BEFORE it was all mainstream
Buntu Ngcebetsha
Buntu Ngcebetsha - Day ago
Does this mean people of African descent and people of Eurasian and East-Asian descent are different?
Elijah A
Elijah A - Day ago
Would be cool if there were different types of humans but then there would be some serious racism maybe worse than what happend in our history
Tshepo Masiea
Tshepo Masiea - Day ago
I think dolphins and canines should come clean about seals.
Bright Mhango
Bright Mhango - Day ago
One area that interests me as an Africa is, We never left, we never met different climes and elevations... and yet, we are pretty much the same with the far-flung peoples of the world. How can mating with a different species only yield 1% DNA?
Christopher allen
Christopher allen - Day ago
yeah right before they asked us to vote for them...
Giovanna Borsonello
Wonderful! Thank you!
Kevin Hernandez
Kevin Hernandez - Day ago
It would be awesome if other hominid had survived!
Amazing 101
Amazing 101 - Day ago
Don't say all of human in the words "family tree" it's creepy.
DSXmachine - Day ago
There are multiple human species alive today and everyone knows it.
7ito The Gaymer
7ito The Gaymer - Day ago
Why he say it like dinee sivens
Aaron Villalobos
Aaron Villalobos - Day ago
I like the GTA type background beat
MH Ace
MH Ace - Day ago
Why did the rest of the other species die off?
Miki N
Miki N - Day ago
even more proof that Tibetans were never Chinese!
SoraWisdom - Day ago
dont you also have a science channel?
nicholasyoder - Day ago
I have two delta 32 gene mutations. Now how does that happen?
xDennNiex - Day ago
adept improvise overcome
Landsraad - Day ago
So... The dwarves died out.
My_Florida_Life - Day ago
"his Neanderthal segments were longer than modern humans..." - enter michael scott
null -
null - - 2 days ago
Bananas are choms choms.
cerh fhrow
cerh fhrow - 2 days ago
R there any pure homo sapiens?
Pepper - 2 days ago
nice video PBS
Bill Keck
Bill Keck - 2 days ago
What if, much like Europeans & Native Americans, modern humans had developed immunities, or resistance, to certain diseases that the Neanderthals did not have. Contact with European diseases wiped out about 90% of native Americans. Modern humans were coming north, from Africa & Mid-East where they may have had diseases the Neanderthals hadn't encountered.
DestyNova - 2 days ago
I'm sure what happed was our human ancestors definitely out competed and purposely killed off the other hominids. The lucky ones interbred and lived on through that way. But not hard to imagine early man wiping them out. We fought other tribes over slight differences, now imagine them meeting human like creatures that were visibly way different. It was probably a bloodbath of epic genocide forgotten by time.
Dan Kennedy
Dan Kennedy - 2 days ago
We may have wiped them out because they were dangerous towards us or something
Anke - 2 days ago
Interesting video!
Though, there's a theory that says Homo sapiens caused the downfall of both Neanderthals and homo erectus as well right? It says something about Homo sapiens migration to Eurasia wich caused wars over land with the Neanderthals, and sapiens couldn't win it until the cognitive revolution, if I remember correctly. Some even think both the theory of interbreeding and the us-killing-them-one could have happened at the same time. I don't think either of these possibilities have been debunked right? Tho I haven't been very up to date. A video about these theories would be interesting to see as well! :)
The Streak
The Streak - 2 days ago
I used to think that a species was defined by fertility. If two animals can produce a fertile offspring, the they were the same species. I'm glad to learn this isn't true....all these human species could mate and their offspring are fertile.

I have NO idea where I got that thing about species. Superstitions die hard, I guess.
James McHarry
James McHarry - 2 days ago
About the no violence part, I’ve read there is evidence in The Neanderthal caves in Spain of Homo sapiens killing and eating Neanderthals.
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