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Dinosaurs Don't Suck
Posted: 24th August 2007
Almost everyday, one of things that I like to do is go to Google news and do a search for "dinosaur" to see what's going on in the world of dinosaurs, and everyday the same thing happens: half the stories aren't actually about dinosaurs.
The reason? The word "dinosaur" is used (I should say over used) as a synonym for out-of-date, obsolete, impractical, or sometimes ridiculously large. Here's a few examples that came up in today's google search:
- Tiger Woods Makes Me Wonder If I'm a Dinosaur: Scott Soshnick - dinosaur is used to mean "too old" [although I can't actually find in any quote, just the headline]
- Is your board of directors a dinosaur? - dinosaur is used too mean "impractical" and "not useful" [again, the word doesn't appear in the article itself, only the headline]
- Museum admission to be dinosaur sized - the word dinosaur in an article about a museum exhibition about dinosaurs, however in the headline, the word dinosaur is used to mean "overly/impractically large" [and this meaning of dinosaur is only used in the headline, but not the actual article text]
- McKie not about to be a dinosaur - the word dinosaur is used [again only in the headline, not the actual article text], to mean "obsolete".
The question is why do journalists, or more particularly headline writers, love to use the word "dinosaur" in this sense? I suppose you could argue that kind of definition of "dinosaur" does actually appear in the dictionary [see definition 3], but let's face it: it's a cliche, and it doesn't reflect our modern knowledge about the nature of dinosaurs.
Dinosaurs were not impractical. Dinosaurs are not obsolete. And dinosaurs are not out of date. In short, they don't suck.
Here a few of the reasons why:
- Dinosaurs out competed our ancestors, the mammal-like-reptiles, which before them had been the dominant large land creatures.
- Dinosaurs out competed our later ancestors, the early mammals. During the age of dinosaurs, no large mammals were able to evolve - they surpressed mammalian evolution that completely. Only after non-avian dinosaurs were wiped out by bad luck (the famous asteroid impact), did mammals radiate into large body sizes.
- Dinosaurs dominated land environments for about 150 million years. Mammals have done so for a mere 65 million.
- Dinosaurs domination of land environments was more complete than mammals. During the age of dinosaurs, dinosaurs held on a monopoly on the large terrestrial predator niche. During the age of mammals, large terrestrial predators have not always been mammals: Phorusrhacidae (which I might point out is a branch of the dinosaur tree) did pretty well for 60 million years, Megalania, a 23 feet (7 meter) lizard did pretty well in Australia until just 40,000 years ago, and Pristichampus (a hoofed Crocodilian) was chasing down mammals in early Tertiary Europe and North America.
- Not all dinosaurs were huge. Yes, it's true that there were some gigantic species (bigger than any land mammal) like Brachiosaurus, but dinosaurs came in a range of sizes from the huge right down to chicken-size (e.g. Compsognathus).
- (Some) dinosaurs were fast (see previous article). Of course there were probably some slow-movers too, but people don't consider mammals to be generally slow animals just because of sloths.
- (Some) dinosaurs were smart, for example Troodon
- Dinosaurs had sophisticated feeding adaptions1: gizzard stones, cheeks, highly evolved teeth, and some species may even have had trunks.
- Dinosaurs were probably warm-blooded2: they appear to have been fast active creatures, they outcompeted warm-blooded mammals and the (probably warm-blooded) mammal-like-reptiles, the predator-prey ratios suggest warm-bloodedness, as do growth patterns in bones.
- Despite some assertions to the contrary, dinosaurs are still doing pretty well, arguably better than mammals. There are 5,400 species of mammals, but more than 10,000 species of birds, and birds are a branch of the dinosaur evolutionary tree. In modern cladistic systems of classification, birds are classified as a type of dinosaur.
1 There are some beatiful sketches of dinosaur teeth in The Dinosaur Heresies
by Robert T. Bakker.
2 I'll refer you to The Dinosaur Heresies
again.
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