Some scientists contend that many species of dinosaurs had metabolisms more like warm-blooded mammals' than cold-blooded reptiles'"
Here metabolisms of many species of dinosaurs is like those of warm blooded mammals and less like those of cold bloodedreptiles
Some scientists contend that the metabolisms of many species of dinosaurs were more more like warm-blooded mammals' than cold-blooded reptiles
Here the comparison is not very clear. It can mean 2 things
Here metabolisms
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