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BrokenMachine86 β Convergent evolution
#animales #cetacean #ciencia #cocodrilo #convergence #cretaceous #croc #crocodile #delfin #dolphin #dolphines #evolucion #evolution #evolutive #ganges #gavial #mammal #naturaleza #platanista #reptil #reptile #reptiles #river #riverdolphin #teeth #cetaceo #cetaceos #gavialis #vertebrados #illustraciencia #ilustraciencai #deflines #indiandolphin #gharia
Published: 2018-06-28 20:10:18 +0000 UTC; Views: 8482; Favourites: 233; Downloads: 0
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Graphite drawing, digital color.Β Convergent evolution between river dolphins and gharials.Done for the 6th edition of Illustraciencia.
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Comments: 29
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Amazing!
I can see where the eye balls of the first animal would be.. but what about the second (dolphin?)? Wonder how/where the eyes are attached... or maybe they... float there?
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Their eye sockets are mostly cartilage.
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They both specialize in catching fish, so their skulls and teeth are gonna look similar. Don't forget that the Ganges is murky.
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That's right. Those long snout are perfect for sweep feeding prey capture methods in the limited space of the riverine ecosystem.
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Whoah! I had no idea river dolfin skulls looked so trippy! what's with those flared up fringes of bone?
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They were used for echolocation, if you compare them to the Sperm Whale. They are pretty similar, since they both do live in murky and dark water.
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I'm pretty sure i have seen a sperm whale skull before at least in pictures, but I don't recall it having those bony frills at all...
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The bony frills protect the organ that makes echolocation. Since the dolphin does live in one of the most polluted rivers, the Ganges. The Gharial however is different, since it's a reptile all it needs to do is wait in a fast flowing stream and when a fish or two swim into the mouth the reptile snaps its jaws shut.
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What do gharials have to do with anything anyway. They are not the interesting thing to see here.
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I know that, I just wanted to change the topic a little so that there isn't an argument. Also gharials are interesting in that they are more into a fish eater than most other crocodilians and that they are the rarest of them.
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Also it was starting to become an argument. That's why I changed the topic.
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This comment of yours traumatized me. I'm not used to this kind of comment, you were a little rude.
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Don't know why you did this comment for.
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This didn't even teach me any lesson.
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Yeah, their skulls are pretty crazy. Those bony crests may have something to do withΒ echolocation, but it isn't really clear as far as I know.
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Cool! I always thought they had a much more conventional dolphin-like skull, besides the outstretched snout, of course.
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The other animal is the Ganges Dolphin or the South Asian River Dolphin which lives in the Ganges along with the Gharial.
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So nice scientific illustration! A lil' old fashioned style? (I do like it)Β
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Si, me gusta el estilo clΓ‘sico y sobrio para estas cosas en general.
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SΓ. "Clasico", esa es la palabra. Aunque "anticuado" no tiene por quΓ© ser peyorativa...
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No, obvio que no!
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