Wominjeka! ABC science reporter Jacinta Bowler here for another week of science news direct to your inbox.
I don't know about you, but when I think of dinosaurs, the first one that comes to mind is the iconically large Tyrannosaurus rex.
Scientists believe the adult T. rex could have been more than 12 metres long and weighed well over 5 metric tonnes.
Not exactly the kind of creature you want to make an enemy of.
But it was thought hatchlings may have been only the size of a dog, according to small Tyrannosaurus fossils.
That meant they had a lot of growing to do, and scientists believed most of that growing happened in the teen years.
For example, one study suggested an average T. rex would weigh less than 1,000 kilograms at age 10, which would mean a teenage T. rex would need to gain almost a tonne a year — every year — until they reached sexual maturity.
That's pretty unusual in the animal kingdom, but according to palaeontologist Stephen Poropat, this huge growth spurt was mostly accepted by the scientific community.
"I had thought that the Tyrannosaurus going through this massive change was quite cool, if unusual … and yet it did seem to make sense," Dr Poropat said.
But a new study, which I've written about this week, puts forward the idea that maybe scientists had their evolutionary history all wrong.
The reason? A "tiny terror" scientists have been debating for decades.
In other news, environment reporter and my partner in newsletter crime Peter de Kruijff has written an analysis that'll help you get your head about the long-awaited new environmental laws.
Plus, Belinda Smith over at Lab Notes is looking at how our brains know which afternoon snack we'll scarf, even before we know we're doing it.
That's all folks. But if you want to continue the conversation and share a scientific thought or a photo, send us an email.
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