2 ms·
not a specialist here, my first reaction is .. feathers are quite insulating.. so, not good for hot climates. Flying means that the creature is in wind all day,
by mistrial9 4y ago
not a specialist here, my first reaction is .. feathers are quite insulating.. so, not good for hot climates. Flying means that the creature is in wind all day, cool climate or not.. So put that together, I suspect that lots of the large reptiles just had to be in warm climates, and did not use insulating features each day.
useful and interesting to see that everyone here is saying "yes" to the birds question
- jonny_eh 4y agoCalling dinosaurs reptiles is fairly wrong at this point, since a dinosaurs were warm blooded, and being cold blooded is a defining characteristic of being a reptile. This does raise the question if it's worth considering birds and dinosaurs as different groups.
- mistrial9 4y ago> dinosaurs were warm blooded hm? pointers please.. if they lay eggs then that is "reptile" no? I don't claim to know, I am asking..
- jonny_eh 4y agohttps://earth.yale.edu/news/were-dinosaurs-warm-blooded-their-eggshells-say-yes https://earth.yale.edu/news/were-dinosaurs-warm-blooded-thei... Birds lay eggs and are definitely warm blooded. Not to mention the odd mammal that lays eggs like the platypus.
- SAI_Peregrinus 4y agoBirds lay eggs and are definitely not reptiles.