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Polar bears and grizzlies are probably a better example. They produce fertile offspring but no one thinks of them as the same species.
by wmil 11y ago
Polar bears and grizzlies are probably a better example. They produce fertile offspring but no one thinks of them as the same species.
- galago 11y agoWolves, coyotes, domestic dogs are another example that comes up in this discussion.
- Turing_Machine 11y agoYeah, all of those can interbreed, more or less. On the other side of the coin, consider dogs alone. Successful breeding between Great Danes and Chihuahuas is quite rare. :-) The "successful breeding" metric isn't very satisfactory on any level