Good Question! They are all:
Fish are not alike to mammals
All mammals: 1. feed their young with milk 2. have some fur 3. have three middle ear bones 4. have a neocortex in the brain 5. are warm-blooded These are not the only common characteristics.
im their god
they are both mammals
They are mammals and have whiskers.
they are large mammals
they are both mammals
They lay eggs and have feathers.
Yes, in some ways birds are very similar to mammals. In others, they differ completely.
they all have same number of protons and electrons (in unionized form) but may have different number of neutrons.
they are both mammals.
they are both apes(primates) and they are mammals