Tumgik
#phylogeny
bunjywunjy · 7 months
Note
Have you heard about the Dog x Fox hybrid they found in Brazil?
it's actually a really interesting case of hybridization!
the animal in question has been genetically tested and confirmed to be a hybrid between a dog and a pampas fox, but the caveat there is that pampas foxes are actually in a new-world genus called Lycalopex, sometimes known as the False Foxes!
Tumblr media
these animals are actually quite a bit closer to dogs than true foxes (everything in the genus Vulpes) are, genetically speaking, so it's not too hard to imagine that it COULD happen, but it's still pretty bonkers that it did!
here's the miscreant in question.
Tumblr media
9K notes · View notes
prokopetz · 2 years
Text
All animals are either Beasts or Creatures. This is usually consistent for a given species, but not always; for example, most dogs are Beasts and most cats are Creatures, but occasionally one will encounter a cat who is clearly a Beast, or dog who's an absolute Creature.
27K notes · View notes
thagomizersshow · 7 months
Text
Apes are a kind of monkey, and that's ok
This is a pet peeve of mine in sci comm ESPECIALLY because many well respected scientific institutions are insistent about apes and monkeys being separate things, despite how it's been established for nearly a century that apes are just a specific kind of monkey.
Nearly every zoo I've visited that houses apes has a sign somewhere like the one below that explains the supposed distinction between the two groups, focusing on anatomy instead of phylogeny.
Tumblr media
(Every time I see a graphic like this I age ten years) Movies even do this, especially when they want to sound credible. Take this scene from Rise of the Planet of the Apes:
Tumblr media
This guy Franklin is presented as the authority on apes in this scene, and he treats James Franco calling a chimpanzee a monkey like it's insulting.
But when you actually look at a primate family tree, you can see that apes are on the same branch as Old World monkeys, while New World monkeys branched off much earlier.
Tumblr media
(I'm assuming bushbabies are included as "lorises" here?)
To put it simply, that means you and I are more closely related to a baboon than a baboon is to a capuchin.
Tumblr media
Either the definition of monkey includes apes OR we can keep using an anatomical definition and Barbary macaques get to be an ape because they're tailless.
Tumblr media
"I've got no tails on me!"
SO
Why did all this happen? Why did we start insisting apes are monkeys, especially considering the two words were pretty much interchangeable for centuries? Well I've got one word for ya...
Tumblr media
This the attitude that puts humans on a pedestal over other life on Earth. That there are intrinsically important features of humanity, and other living things are simply stepping stones in that direction.
At the dawn of evolutionary study, anthropocentrism was enforced by using a model called evolutionary grades. And boy howdy do I hate evolutionary grades.
Basically, a grade is a way of defining a group of animals by using anatomical "complexity". It's the idea that evolution has milestones of importance that, once reached, makes an organism into a new kind of thing. You can almost think of it like evolutionary levels. An animal "levels up" once it gains a certain trait deemed "complex".
You can probably see the issue here; that complexity is an ephemeral idea defined through subjectivity, rather than based off anything truly observable. What makes walking on 2 legs more complex than walking on four? How are tails less complex than no tails? "Complexity" in this context is unmeasurable, therefore it is unscientific. That's why evolutionary grades suck and I never want to look at one.
For primates, this meant once some of them lost their tails, grew bigger brains, and started brachiating instead of leaping, they simply "leveled up" and became apes. Despite the early recognition that apes were simply a branch of the Old World monkey family tree (1785!), the idea of grades took precedent over the phylogenetic link.
In the early years of primatology, humans were even seen as a grade "above" apes, related but separated by our upright stance and supposed far greater intelligence (this was before other apes were recognized tool users).
Tumblr media
It wasn't until the goddamn 1970s that it was recognized all great apes should be included in the clade Hominidae alongside humanity. This was a major shift in thinking, and required not just science, but the public, to recognize just how close we are to other living species. It seems like this change has, thankfully, happened and most institutions and science respecting folks have accepted this fact. Those who don't accept it tend to have a lot more issues with science than only accepting humans as apes.
Tumblr media
And now, we come to the current problem. Why is there a persistent idea that monkeys and apes are separate?
I want to make it clear I don't believe there was a conscious movement at play here. I think there's a lot of things going on, but there isn't some anti-monkey lobby that is hiding the truth. I think the problem is more complicated and deals with how human brains and human culture often struggle to do too many changes at once.
Now, I haven't seen any studies on this topic, so everything I say going forward is based on my own experience of how people react to learning apes (and therefore, humans) are monkeys.
First off, there is a lot of mental rearranging you have to do to accept humans as monkeys. First you, gotta accept humans as apes, then you have to stop thinking in grades and look at the family tree. Then you have to accept that apes are on the Old World monkey branch, separate from the New World monkeys.
That's a lot of steps, and I've seen science-minded zoo educators struggle with that much mental rearranging. And even while they accept this to an extent, they often find it even harder to communicate these ideas to the public.
I think this is a big reason why zoos and museums often push this idea the hardest. Convincing the public humans are apes is already a challenge, teaching them that all apes are monkeys at the same time might seem impossible.
I believe the other big reason people cling to the "apes-aren't-monkeys" idea is that it still allows for that extra bit of comforting anthropocentrism. Think of it this way; anthropocentrism puts humans on a pedestal. When you learn that humans are apes, you can either remove the pedestal and place humans with other animals, OR, you can place the apes up on the pedestal with humanity. For those that have an anthropocentric worldview, it can actually be easier to "uplift" the apes than ditch the pedestal.
Too make things worse, monkeys are such a symbol of a "primitive" animal nature that many can't accept raising them to the "level" of humanity, but removing the pedestal altogether is equally painful. So they hold tight to an outdated idea despite all the evidence. This is why there's often offense taken when an ape is called a monkey. It's tantamount to someone calling you a monkey, and that's too much of a challenge to anthropocentrism.
Personally, I think recognizing myself as a monkey is wonderful. Non-ape monkeys are as "complex" as any ape. They make tools, they have dynamic social groups, they're adapted to a wide range of environments, AND they have the best hair of all primates.
I think we should be honored to be considered one of them.
Tumblr media Tumblr media Tumblr media
3K notes · View notes
hutiapendra · 16 days
Text
Tumblr media
Phylogenetic tree of the Cenobites
862 notes · View notes
softersynths · 9 months
Text
Tumblr media
the tama tree of life
3K notes · View notes
asteroidtroglodyte · 4 months
Text
758 notes · View notes
great-and-small · 2 years
Text
Tumblr media
9K notes · View notes
crevicedwelling · 1 year
Note
MANTISES ARE RELATED TO ROACHES??
yes! while they do have differing ecologies—mantises generally are elongate, diurnal predators and cockroaches generally are flattened, nocturnal detritivores—it’s not so surprising if you take a closer look:
Tumblr media
they are one another’s closest relatives, being grouped together in the superorder Dictyoptera, which is revealed by their many shared anatomical features.
Tumblr media Tumblr media
if you compare the wing structure on these two, you’ll find the veins are very similar. to get a mantis out of a roach, morphologically speaking, all you’ve got to do is elongate the pronotum (roach head shield, mantis ‘torso’), elongate the legs, and enlarge the eyes.
mantises and roaches also both produce “oothecae,” tough eggcases in which eggs are protected from the environment. mantis ooths are often made of sturdy, hard foam, while roach ooths are leathery and purse-like.
Tumblr media Tumblr media
the raptorial legs of mantises aren’t too greatly modified from a roach forelimb, either. roaches already have spiny legs for digging and defense; with additional spines organized in rows, there’s a powerful grasping foreleg.
additionally, some of the most basal (least changed from the original ancestor) mantises retain a number of very roach-like features, such as flat bodies, a short pronotum, and long cerci (“butt antennae”). Chaeteessa doesn’t even have the long spike at the end of the tibia segment! although I’m not entirely sure if all of these roachy structures are necessary primitive and not secondarily derived, these two do give a good look at how mantises might’ve looked before they evolved the characteristic spindly green forms you recognize today.
2K notes · View notes
markscherz · 9 months
Note
Bird-reptiles is a butterfly-moth situation?
Precisely! These kinds of situations show us how wrong we have been for so long about the relationships among various animals. The pretty little boxes we like to make are often very, very wrong, phylogenetically, i.e., they are not compatible with the *actual* relationships among the organisms.
Here are a few other mind-fucks that have come to light as a result of modern methods being applied to traditional categories that turned out to be wrong:
• Snakes are lizards
• Termites are cockroaches
• Birds belong to lizard-hipped dinosaurs (Saurischia), not the bird-hipped ones (Ornithischia)
• All tetrapods are fish
• Insects are crustaceans
1K notes · View notes
monikatouhou · 10 months
Text
Tumblr media
Tried to put together a decently parsimonious phylogeny
1K notes · View notes
cathchicken · 1 year
Text
Photos of slug caterpillars in the most un-caterpillar shapes:
Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media
(Photo one: monkey slug caterpillar. Photo two: idonauton apicalis. Photo three: exact name unknown, type of cup moth larvae. Photo four: flipped over skiff moth caterpillar. Photo five: gelatine slug caterpillar.)
3K notes · View notes
bunjywunjy · 6 months
Note
in that fox and dog diagram; why are bears and walruses SO CLOSE
that chart is collapsed a bit, but it's because walruses and other pinnipeds share an ancestor with bears :)
Tumblr media
which, I mean. I can see it.
Tumblr media Tumblr media
810 notes · View notes
a-dinosaur-a-day · 7 months
Text
So we don't know, exactly, how most birds are related to each other
so, for fun:
more polls that can't get derailed
had to cut the et al for space, sorry
enjoy
232 notes · View notes
thagomizersshow · 2 months
Text
Thinking about bovid phylogeny and how this guy (four horned antelope)
Tumblr media
is more closely related to this guy (gaur)
Tumblr media
than he is to this guy (Damara dik-dik)
Tumblr media
431 notes · View notes
fossilfix · 8 months
Text
Tumblr media
Something I've been working on for a few days; a dinosaur phylogeny poster!
This is something I hope to get printed large size & take to outreach events & engagements, though I may revise the layout & arrangement based on any feedback I get.
Believe it or not, even this is a hugely simplified illustration of the evolutionary history of Dinosaurs. Certain groups have been compressed or paired-down for the sake of brevity, but the overall picture is authentic to the most recent research & analyses. It means to demonstrate the incredible (known) diversity within this most fascinating & exciting of dynasties.
The silhouettes come from PhyloPic , a FANTASTIC resource for anyone who needs silhouettes for diagrams, research, education & outreach within natural sciences.
382 notes · View notes
albertonykus · 2 years
Photo
Tumblr media
Two years in the making, my take on illustrating bird phylogeny. Larger view here.
3K notes · View notes