We had known that birds are descended from dinosaurs well before the general public and the majority of paleontologists starting saying "birds are dinosaurs". So simply saying that "we discovered that birds are descended from dinosaurs" is not sufficient to answering your question.
Traditional taxonomy allows for paraphyletic groups, meaning that not all of the descendants of the most recent common ancestor of the group are required to be in that group. So in this case, even though it was known that birds are descended from dinosaurs, they continued to be considered two separate groups, with dinosaurs being a paraphyletic group. Birds were known first, dinosaurs were later discovered and were considered a distinct group, then the link between the the two groups was discovered, but how they were grouped did not immediately change. That birds were not considered to be dinosaurs was a rather arbitrary effect based on how they were discovered and not on any scientific basis.
So why the change? There is a trend in science to prefer cladistic classification, which requires every group to be a clade, meaning that all descendants of the most recent common ancestor of a group are in the group. This effectively means that paraphyletic grouping is being abandoned. So with cladistic taxonomy birds are dinosaurs.
There are other traditionally paraphyletic groups that are still in the process of changing. For example traditionally monkeys were a paraphyletic group, but any clade that includes all monkeys necessarily includes the apes, so in cladistics apes are monkeys. Though, you will still hear many people say 'apes are not monkeys'. Fish was also a paraphyletic group, which included all vertebrates except tetrapods, but of course in cladistics, tetrapods are fish.
The late, legendarily brutal campaign consultant Lee Atwater explains how Republicans can win the vote of racists without sounding racist themselves:
You start out in 1954 by saying, “N*****, n*****, n*****.” By 1968 you can’t say “n*****”—that hurts you, backfires. So you say stuff like, uh, forced busing, states’ rights, and all that stuff, and you’re getting so abstract. Now, you’re talking about cutting taxes, and all these things you’re talking about are totally economic things and a byproduct of them is, blacks get hurt worse than whites.… “We want to cut this,” is much more abstract than even the busing thing, uh, and a hell of a lot more abstract than “N*****, n*****.”
It's onanism in English. And it's rather stupid to call it that because Onan didn't masturbate, he used the pull out method to avoid getting his sister-in-law pregnant with his brother's kid. (yes, I know that sounds weird but that's the story)
Yes, from a superficial viewpoint they are similar. And from a superficial viewpoint shooting a practice target is similar to shooting a person dead. It would be rather stupid to refer to target practice as murder.
That's redundant. Apes are monkeys. There has been a shift in how life is classified, and for the same reason that birds are now considered to be dinosaurs, apes are now considered to be monkeys.
How did we switched from "Dinosaur are giant lizards" to "Dinosaur are giant birds"
When I was a kid, I learned about Dinosaur being "giant lizard", and it's been may-be 10 years, that I hear "Birds are dinosaurs"....
Almost all of the American ones I've heard of are terrifying. ( lemmy.world )
More than 300 Egyptians die from heat during Hajj pilgrimage in Saudi Arabia, diplomats say ( www.cbsnews.com )
Gay Republican candidate melts down when he figured out that his party is homophobic ( www.lgbtqnation.com )
18+ (NSFW) Israel releases film of women soldiers being taken by Hamas on Oct. 7 ( www.reuters.com )
The footage shows the young women, all of them stunned and some bloodied, being bound and bundled into a jeep....
Not a Number ( jemmy.jeena.net )
Good price.
What animals do you dislike for unusual reasons and why?
For me:...