This is Sinosauropteryx, the first non-avian dinosaur ever discovered with feathers (unless you count Archaeopteryx). Like with Anchiornis, we know its exact life appearance!
I wonder what gave them larger volume if the bear species was heavier? Did they have huge lungs or something?
Necro-reply I guess but I actually ended up making an OC of one of theseThylacoleo, the "marsupial lion" was not actually related to lions, but but sort of looks as if it were, if you ignore those really weird teeth. They were similar to thylacines, in terms of being predatory marsupials, but I have no idea if they were closely related. Thylacoleo went extinct long before thylacine did, but still existed at the same time as humans. Climate change is the primary reason believed to have caused their extinction.
400 species that have gone extinct in the last 5 years.
In fairness, with Arthropods especially, sometimes a new "species" is so incredibly similar to it's relatives that it can only be distinguished by genetic sequencing.True, but how many did nature create that we just haven't found yet? Natue is always trying new stuff and seeing what works and what doesn't.
In fairness, with Arthropods especially, sometimes a new "species" is so incredibly similar to it's relatives that it can only be distinguished by genetic sequencing.
Take the 1300 different species of Mining Bee as an example.