Top Posts Tagged with #dinosarus

discord doodles with:

@lolwealldie: fish and flower

@therealopaartist: bunny and frog

@oldhagcalibri: dinosaur

i asked them to make a shape and then drew over it in

lolwealldie's shapes were black blobs

#art mine #2025 art mine #shapeshiftinterest #line game #kinda #closer to a shape game?#fish #dinosarus #rabbits #frogs #flowers #animals

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Below is a picture of my all-time favourite fossil. I've probably posted this before, but I'll post it again anyway because its both astoundingly beautiful, and honestly unbelievably that something like this exists:

If you don't know, these images, from various news outlets, are of a piece of amber from Myanmar containing, along with what looks like some insects and plant debris, part of the tail of a tiny young dinosaur, complete with feathers and colour preserved. Not impressions of feathers, which is rare enough, but the actual thing, intact.

I know that there is some controversy about amber from Myanmar in scientific research, because of the human rights issues there. But I still wonder at this thing. This is a creature that lived about 99 million years ago, and there is a piece of it, not an impression left in stone but the actual creature, looking almost as though its still alive, and you could hold it in your hand.

It was the size of a sparrow and "chestnut brown and white", and I love it.

The tail of a 99-million-year-old dinosaur has been found entombed in amber, an unprecedented discovery that has blown away scientists.

#Science #Palaeontology #Fossils #Amber #Myanmar #Dinosarus #Coelurosaurs #Therapods #Feathers

I'd like to ask a question about archosaurs and warm-blooded vs cold-blooded animals. I know that determining whether an animal is warm or cold-blooded from fossils can't be easy but I was curious about how birds and their ancestors ended up warm-blooded instead of cold-blooded like their crocodile cousins. Do we know what the first warm-blooded dinosaur was? I always thought of mammals being unique in that we are warm-blooded but that can't be true since birds are too!

so actually, there's decent evidence that archosaurs were ancestrally warm-blooded, and crocodilians lost that because they didn't need to expend that energy anymore! They have a four chambered heart and similar blood cells to birds, which are warm blooded features

as for nonavian dinosaurs, we think them and their closest cousins, the pterosaurs, were all functionally warm blooded. IE, if they didn't maintain their own body temp like living birds and mammals, then their sheer size did it for them (gigantothermy)

#endothermy #warm blooded #archosaurs #reptiles #birds #dinosarus #gigantothermy