this post was submitted on 24 Mar 2025
1032 points (100.0% liked)
Microblog Memes
7233 readers
2640 users here now
A place to share screenshots of Microblog posts, whether from Mastodon, tumblr, ~~Twitter~~ X, KBin, Threads or elsewhere.
Created as an evolution of White People Twitter and other tweet-capture subreddits.
Rules:
- Please put at least one word relevant to the post in the post title.
- Be nice.
- No advertising, brand promotion or guerilla marketing.
- Posters are encouraged to link to the toot or tweet etc in the description of posts.
Related communities:
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
It doesn't because "species" is definied as an animal that can have fertile offspring with other members of it's species. Looking at evolution doesn't change that definition, it just shows that it's not a very good definition on an evolutionary timescale. Our concept of species in taxonomy only makes sense within small timeframes.
First we have to establish what you mean by "whale" and translate that to the proper order/clade. Then you look at what was the first described fossile in the group is. And that's your answer. And yes, that answer will change with new fossil discoveries or reclassifications based on other information happen. But as long as you keep up to date with them, the current way we use taxonomy gives quite binary definitions of the majority of lifeforms.
It sure is. But it's just an arbitrary classification system within the greater field. It is like an "index", so you can look up what information belongs to the thing you're looking at. But it doesn't actually hold much information about biology of the thing itself.
Species actually don't have a rigid definition that works across all organisms. The most common definition is the one you gave but sometimes it simply doesn't work, for example any organism the doesn't use sexual reproduction doesn't fit this definition. Clarification of extinct populations would also be an issue. Even considering organisms this is usually used with, there are exceptions. For example; domesticated cattle and American bison, coyotes and wolves, and most cat breeds with various wild species.
What do you mean "biology of the thing itself"? Are you talking about morphology which is a different part of biology. And taxonomic trees are often made based on morphological features so there is a connection.