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Mar
10
comment Reasons why living fossils exist?
Let us continue this discussion in chat.
Mar
10
comment Reasons why living fossils exist?
@Jay The statement "The lineage of X split in two: One branch that leads to Y and one branch that leads to Z." is equally valid for literally any known living things X, Y and Z, which is largely the point of the answer. The details of which creatures are descent from which really aren't important to this answer. Besides all of which, whether we are descent from sharks is really a subjective matter: If you follow the lineage of sharks backwards, parent-to-parent-to-parent you'll find that it's damn hard to place a hard line on where 'early jawed fish' end and 'sharks' begin.
Mar
10
awarded  Commentator
Mar
10
comment Reasons why living fossils exist?
@Jay And there I've specified more exactly our relationship with sharks.
Mar
10
revised Reasons why living fossils exist?
added 340 characters in body
Mar
10
comment Reasons why living fossils exist?
@Jay Sure, let me get right on that.
Mar
9
answered Reasons why living fossils exist?
Oct
24
comment What are the sources of energy that alcohol provides?
@aitchnyu: In addition to additives and adulterants, yes.
Oct
22
revised What are the sources of energy that alcohol provides?
added 61 characters in body
Oct
22
revised What are the sources of energy that alcohol provides?
added 563 characters in body
Oct
22
comment What are the sources of energy that alcohol provides?
@aitchnyu: Updating answer with this information now.
Oct
22
answered What are the sources of energy that alcohol provides?
Aug
2
awarded  Good Answer
Jul
31
awarded  Revival
Jul
30
answered Accurate Human Skull Model for Educational Purpose
Jul
24
awarded  Enlightened
Jul
24
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Jul
23
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Jul
22
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Jul
22
revised How do ants know where they are going without eyes?
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