You Are A Fish
With our current understanding of evolutionary history and our strategy of cladistic naming, if we wanted to have both goldfish and sharks under a single group called "fish", then mammals must also be called fish.
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Show Notes
To learn more about this topic, start your googling with these keywords:
- Phylogenetic tree: a branching diagram or "tree" showing the evolutionary relationships among various biological species
- Cladogram: a diagram used in cladistics to show relations among organisms
- Monophyletic group (or clade): a group of organisms that consists of all the descendants of a common ancestor
- Paraphyletic group: all of the descendants of a common ancestor minus one or more monophyletic groups
- Similarity trap: people can name different species the same thing, only to find out they aren’t even closely related.
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