Uncharismatic Fact of the Day
Contrary to popular belief, you don't need ears to hear! The earless monitor lizard lacks an ear opening or an ear drum, but they have all the other components necessary for hearing. Scientists aren't entirely sure why this species is missing its external ear features, but it may have something to do with the fact that it spends most of its time submerged under water.
(Image: An earless monitor lizard (Lanthanotus borneensis) by Petr Hamerník)
118 notes
·
View notes
im sorry seals molt? my association with that word is insects so i am confused and intrigued
They do! I’d say most species of animals sloughs off “old” parts of their bodies at some point of their lives in some capacity. The word “molting” is used as a catch-all term for this process, although exactly what body part they shed and how they do it varies from animal to animal. Arthropods grow an entire new exoskeleton and shed the old one, but for most other animals, this process only involves shedding the outermost layer of their bodies, the pelage and/or their first layer of skin. Reptiles are quite famous for this because they sometimes manage to come out of their old skins and leave them almost fully intact as if they were kigurumi pajamas:
Mammals tend to mostly only shed fur or hair, growing thicker fur during colder months and losing it in favor of shorter fur during warmer months. How obvious this is depends on the climate, though. It’s quite perceptible in mammals that live in the arctic whose fur changes color depending on the season:
But even the difference between the summer coats and winter coats of domestic dogs can be palpable if you live in places with colder climates!
(I’m quite fascinated by this because I was born and raised in a tropical country and my dogs look the same all year round heh)
But back to the seals. Pinnipeds don’t really use their fur to keep warm like other mammals do, but they still have it, and they have to shed their old coats and grow new ones accordingly, which they do once a year!
In elephant seals, this process is so sudden and so extreme it’s called catastrophic molting. They don’t only lose their fur, but also a layer of dead skin all at once and this forces them to stay on land for a full month without swimming (and therefore, without hunting and eating) until the process is fully done. Because molting requires redirecting blood flow towards the skin instead of to their vital organs as usual, if they swam in the cold waters they’re usually accustomed to while molting, they’d freeze!
Bonus fun fact: despite having lost their fur during the evolution process, cetaceans like whales and dolphins also go through a molting process where they lose a layer of dead skin, which they scrape off by rubbing against rocks and rolling on sand banks.
It’s been recently discovered (as of 2020!) that the reason whales migrate annually from arctic waters to tropical waters is the exact same reason elephant seals spend a month on land: to molt! It’s much easier for a whale to keep warm while shedding its skin in warm waters than it is in cold waters.
7K notes
·
View notes
Most lizards already have wild-looking skulls, but worm lizards elevated it to an artform
Leposternon microcephalum, Smallhead Worm Lizard
Bipes biporus, Baja Worm Lizard
Rhineura floridana, Florida Worm Lizard
Anops kingii, Keel-headed Worm Lizard
Skull images from digimorph.com
For reference, in life, most of these guys are a variation on this look:
17K notes
·
View notes
Obviously everyone should be an organ donor because your final act of compassion on this planet can leave an indelible mark on thousands of people by the act of saving a single life, but also there is the reasonable possibility that your eyes will continue to see lizards after your death and why tf would you not opt in to that?
7K notes
·
View notes
Birds are Dinosaurs
Dinosaurs are not Lizards
None of this is a matter of opinion or debate
Get over it
Love
A Paleontologist
2K notes
·
View notes
TOP TEN DINOSAURUSES
maybe you're wondering my most tenned favorite dinosauruses??? The science study of dinasacacers is called "dinosaurusology" by leading experts like myself, and it is constantly changing as we make new uncoveries almost every tuesday when we find new bones in my cousin rob's garage (he hasn't thrown anything out since the 90's!) As such bear in mind that up to two facts I am about to share could become dated over the course of the next century, however as both the king and queen of science this will only be true if I'm still available to approve the new facts. If I'm dead or kind of tired then nobody will ever know what's true anymore so you should be nice to me.
#10: OVIRAPTOR
OVIRAPTOR was a good model for what all dinosacans were like: it was a wrinkly lizard that slithered in filthy dirt and had difficulty standing upright because its bones were made of rocks. This is why we have the term "the stone age," so be grateful you're living in "the bone age!" Oviraptor's name means "eggs velociraptor" because it was a kind of velociraptor that stole eggs. It didn't know what to do with them because nobody invented cooking yet and raw dinosaur eggs were disgusting, so every oviraptor starved to death.
#9: IGUANADON
This was the last known photograph of IGUANA DON (not to be confused with his cousin iguana dan) when george washington invented photographs 2 million years ago. Don was an ugly disgusting hilarious lizard monster with one horn on its nose and he died because he evolved a dining room in his torso exactly the right size for 21 cavemen to walk in and eat his kidneys. This was not helped by don's instinct to sleep on a big porch under a chandelier.
#9 DIMETRODON
DIMETRODON was the most common dinosaur of jurassic, which was the fifth and final era of dinosaurs after the ice age but before the ediacaran. In fact dimetrodon was the very last dinosaur to ever exist on earth before they were all eaten to death by the ediacaran's dominant predator: a species of swirly looking weird rock. Nobody knows why these swirly looking weird rocks died out, but it's most likely because dimetrodon was so poisonous from its diet of entirely pufferfish. You can tell it was a sea dinosaur because of its fish fin!
#8: PTERADACTYL
PTERODACTYL was a regular dinosaur until it got married to a species of bat and its bat wife laid a bunch of pterodactyl eggs! This woodcut is however inaccurate: flying would not be invented until president obama discovered the first airplane in 1998, so pterodactyl couldn't possibly have stayed in the air and just immediately fell. The long 900 million year reign of the pterodactyl abruptly ended when the last one finally hit the ground (it took longer in those days because the oxygen disaster made so much more air)
#7 SNORKASAURUS
SNORKASAURUS was completely unique among all dinocaurs by having a really long neck. It was one of the largest creatures to ever roam the earth at over 7 feet tall, or exactly 12 meters to those of you living in Liberia or Myanmar! This is the last known photograph of snorkasaurus, giving birth to the first cavemen. Snorkasaurus went extinct because all of them did this instead of making baby snorkasauruses. This is because like all dinosaurii they had only a tiny peanut for a brain, and nobody was around to give them 'the talk' because that wasn't invented yet.
#6 SMILODON
SMILODON was a very special dinosaurn because it was the first one to stand up on its hind legs after years of rigorous exercise and weight training. By inventing this new way of walking, Smilodon made it possible for the first monkeys to evolve! This is called "convergent" evolution.
#5 BULBASAUR
BULBASAUR was a majestic and beautiful species of neopet unfortunately disliked by the scientific community because it is the reason there are no flying dinosuars. Bulbasaur was the first ever flying dyanasar ever invented, 19 billion years ago on September 10, 2001, but the project was discontinued when its first test flight ended in a tragic accident. That's right: on September 11, 2001, Bulbasaur crashed into the stock market, causing the great depression that lead to the civil war :'( now to this very day, flying dinosarers are against the law.
#4 YOSHI
YOSHI is a type of dinersaulophus called a "bird," which was actually the second attempt by early neanderthal alchemists to manufacture a street legal flying dinnersauran, but the New Zealand government realized if dinophlofbuses can fly, then bats would no longer be special, and since bats are New Zealand's only major export it would have been an economic disaster. The queen of Australia (New Zealand's largest city) ordered the CIA to sand all of the wings off of these early prototype birds. Every bird tragically went extinct when it looked down, noticed how high up it was and remembered it could not fly, activating the effects of Earth's gravitational field.
#3 ANOMALOCARIS
ANOMALOCARIS was the dinosorcerous that discovered the first primitive cave painting of a modern day crab and invented carcinisation. All the other dinanders laughed at Anomalocaris for wanting to turn into a crab, but guess what??? Every single kind of dinosaur is dead but there's a crab still alive at 29, making it the oldest person in the world. Who's FUCKING laughing now!!!!!!!!!!!!!!!!!!
#2 EARL SINCLAIR
This is the last known photograph of Earl Sinclair, seen here as an uncredited extra in "Avatar 3: Lost in New York." Earl Sinclair was a sindonaur species that could disguise itself as a human by putting on sunglasses, a necessary adaptation in order to hide from the largest predator dancasore to ever live: Mellisuga helenae. However, near the end of the coal age, M. Helenae finally remembered that sunglasses hadn't even been invented yet. Look carefully, and you'll notice nobody is wearing sunglasses at all in this scene, making Earl Sinclair stick out like a sore thumb! If you're still having difficulty, here's a zoomed in image of this majestic thunder lizard:
Unfortunately......this wardrobe malfunction made Mr. Sinclair just as obvious to his ancient enemy, and the last Earl Sinclair's brains were sucked out on September 11, 2001, the darkest day in British history because he was the only one who knew the recipe to chicken mcnuggets (the only british food.) To this day all british people are extinct but you can still see their fossilized skeletons waiting in line at the department of motor vehicles.
#1 CONCAVENATOR
Concavenator was an Early Cretaceous carcharodontosaurid up to six meters in length with an unusual pointed crest on its back.
2K notes
·
View notes