Blood work is not definitive. Morphology rules.
This is an argument from ignorance. Why aren't you ashamed of yourself?
Science. Evidence. Put up or shut up.
: ) Martin and Feduccia have just entered the room. The single character mindset. Where's the suite Jaime?
You are both wrong. Put manatees into your analysis and look what happens.
<reduced distal ulna,>
Most cursorial mammals?
: )
<tooth counts, tooth shapes, etc.>
Ah, and this is constrained primarily by diet.
and yet, there are patterns and suites of patterns. You've got to think about the whole critter.