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Lost Age of Monotremes Revealed by Fossils From 100 Million Years Ago

As bones encased in rock rotted away, water-borne silica seeped into the crevices, solidifying into opal and preserving precious details for

As bones encased in rock rotted away, water-borne silica seeped into the crevices, solidifying into opal and preserving precious details for 100 million years. The resulting fossils now provide evidence that there really may have been an Age of Monotremes, before other mammals came to dominate. "It's like discovering a whole new civilization," says Australian Museum paleontologist Tim Flannery. "Today, Australia is known as a land of marsupials, but discovering these new fossils is the first indication that Australia was previously home to a diversity of monotremes." Only five of these rare mammals still cling to existence: one platypus and four echidna species, shared between Australia and Papua New Guinea. But due to their reptilian-like egg-laying feature, it has long been thought these animals evolved before placental mammals like us and marsupials.

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Fast Fauna Facts #3 - Winged Argonaut (Argonauta hians)

Family: Argonaut Family (Argonautidae)

IUCN Conservation Status: Least Concern

Like the other small octopuses in the argonaut family many Winged Argonauts appear to have spiral-shaped external shells similar to those of nautiluses or ammonites, but this isn't quite the case - what appears to be an argonaut's shell is only seen in adult females, and is actually a thin-walled, calcium-based case secreted from and held by a specialised pair of arms in order to carry fertilized eggs until they hatch. Found in non-polar waters worldwide, Winged Argonauts are found mainly near the surface in the open ocean (in contrast to most octopuses, which are bottom-dwellers,) feeding on small floating invertebrates and often using their suction cups to cling to flotsam or larger animals (sometimes including other argonauts) for protection; when faced with a predator, they may attempt to position the animal they're riding on between them and the perceived threat to act as a meat shield.

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ScienceAlert

Ancient Genes of Zombie Viruses Revealed as Hidden Drivers of Cancer

When viruses pay us a visit, they sometimes leave parts of themselves behind.

When viruses pay us a visit, they sometimes leave parts of themselves behind. Silently tucked away in our genomes, some of these bits of foreign DNA can get passed down through the generations. They were long thought inactive, but we've since learned these stowaway sequences can be turned back on to wreak all sorts of havoc. Now researchers led by University of Colorado bioinformatician Atma Ivancevic, have found cancers can make use of some of these zombie virus parts for their own benefit.

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Listen to me, boy. You will hear about sea slugs. You will enjoy sea slugs

Costasiella kuroshimae / leaf sheep. Discovered off the coast of Japanese island Kuroshima in 1993, they can indirectly perform photosynthesis by absorbing chloroplasts from algae

Cyerce nigricans. The cerata can be easily cast when disturbed. They can also swim by powerfully flapping said cerata when strongly stimulated. I think they look like butterfly wings!

Jorunna parva / sea bunny. They are covered in papillae, which are fleshy protuberances used for sensory functions. It looks like fur!

Glaucus atlanticus / blue glaucus. They are rarely seen, except during periods of on-shore winds which brings them and their prey into coastal waters. They are the most dangerous sea slug to handle, able to give humans a very painful and potentially dangerous sting

Chromodoris lochi / loch's chromodoris. They are spongivores, and prefer being on the underside of overhangs on rocky reefs. Their distribution is widespread in the Indo-Pacific. Everyone I show sea slugs to seems to love this little guy

Dirona albolineata / white-lined dirona. A translucent predator that often eats bryozoans and small snails. They generally reside on rocks and sometimes mud in the intertidal. Pretty little things, they remind me of shards of glass

Phidiana hiltoni / Hilton's Aeolid. They are known for being quite aggressive, often biting and fighting other aeolids, which is so real of them. They always reminded me of lit matches

Acanthodoris lutea / orange-peel doris. Its bright aposamatic colouration is a warning to predators of its distasteful toxicity. They also notably smell of sandalwood! You don't understand. I NEED to hold one

Nembrotha kubaryana / dusky nembrotha. They use the toxins in their prey ascidians to defend themselves against predators. The toxins are stored in their tissues then released in a slimy defensive mucus when alarmed. Nembrotha kubaryana are well-known for their neon appearance

Phyllodesmium poindimiei / Spun Of Light. It's primarily nocturnal and can cast its cerata for protection. Anyway, can we all agree that Spun Of Light is the most awesome name for a sea slug ever? I mean, look at it. That's a sea slug spun of light if I've ever seen one

Conclusion: sea slugs are the creatures ever

Omfgomfgomfgomfgomfgomfg

the archfey trench coat has been restocked! <3

100% cotton exterior, 100% printed cotton interior, zippered pockets and embroidered details. sizes small-3xl unisex available. fulfillment for these will occur around the end of the month!

SHOP

its pride month pillowspace. you know what that means.

huh? what? do you want me to post like, gay sea slugs? what?

THIS OCTOPUS IS HAVING A NIGHTMARE, SCIENTISTS BELIEVE.

Sleep is a fundamental biological function present in all vertebrates and most invertebrates. Octopuses are really complex animals, displaying active and inactive sleep states similar to those of vertebrates. In particular, octopuses have active sleep states during which they display sequences of camouflage patterns, while remaining relatively quiet and unresponsive to external stimuli. Some scientists have speculated that these states could be analogous to dreaming in mammals.

Now, researchers have recorder what is believing an octopuses having nightmare. During a month, researchers recorded a male Brazilian reef octopus (Octopus insularis), and they detected four brief episodes were identified during which the octopus abruptly emerged from sleep, detached itself from its sleep position, and engaged in antipredator behaviors, despite no predator was present. The longest of these episodes resembled the species-typical response to a predatory attack, suggesting that the animal may have been responding to a negative episodic memory while sleeping.

However, these are just conjectures, as it is hard to be sure, according to scientists, who claim that more studies are needed to ensure that they really are nightmares.

Gif from video: Eric Ramos et al

Reference:  Ramos et al., 2023. Abnormal behavioral episodes associated with sleep and quiescence in Octopus insularis: Possible nightmares in a cephalopod?. bioRxiv.

video can be seen here

"which reptile is the most catholic?" obviously Komodo Dragons because they have virgin birth

many other reptile lineages also have virgin birth (parthenogenesis), there's even MULTIPLE species of whiptail lizards that reproduce entirely this way!

there are no males in these species. only females.

however! they still court each other and do some copulating.

that's right. MULTIPLE SPECIES OF LIZARD LESBIANS.

LIZBEANS.