Dinosaurs grew to outpace their young
Ancient reptiles owed huge size more to their eggs than to a benign environment.
Some dinosaurs grew to gigantic sizes to avoid competition from their own young, rather than to take advantage of abundant oxygen, high temperatures and large territorial ranges, say two studies. But their largeness may also have proved their undoing.
Some have argued that dinosaurs were able to grow quickly and fuel large bodies when temperatures were warm, oxygen levels were high, and land masses such as the supercontinent Gondwana provided abundant living space.
But although the idea that certain environmental conditions favoured the growth of enormous dinosaurs has been popular among palaeontologists, there is little evidence for it.
Friendly environment: To see whether the link could be supported, Roland Sookias, a biologist at the Ludwig Maximilian University of Munich in Germany, and his colleagues examined whether changes in body size followed changes in environmental factors. Their findings are published in Biology Letters today 1.
The team used thigh-bone lengths to work out the body sizes of more than 400 species alive during the Permian, Triassic and Jurassic periods (299 million to 145 million years ago). This included dinosaurs and their predecessors, as well as contemporaries such as flying pterosaurs and the ancestors of mammals.
Interesting read! Dinosaur growth is a topic I’ve always enjoyed, especially when it comes to how fast they would grow. A nice read for anyone interested.
- gaylethefish reblogged this from geologise
- thecalicokittie reblogged this from crownedrose
- ridiculousf likes this
- hedownwithskeletor likes this
- quandomando likes this
- dreadscape reblogged this from goddessoftheblackcoast
- anthropomorphicsun likes this
- 510kg likes this
- chev1uan likes this
- goddessoftheblackcoast reblogged this from scientificillustration
- realhumann likes this
- wreckitluis likes this
- jabberwockyjake likes this
- dinosaurs-and-boobs likes this
- elkinesioloco reblogged this from fuckyeahdinoart
- fragile-eggshell-mind reblogged this from scientificillustration
- iamtheantagonist reblogged this from invitationtoavalon and added:
- iamtheantagonist likes this
- invitationtoavalon reblogged this from fuckyeahdinoart
- thebigjawpokemon reblogged this from fuckyeahdinoart
- wonderland-living reblogged this from misandrrry
- misandrrry reblogged this from blandersonwarbler
- galaxyclusters likes this
- tiny-tarte likes this
- md-ma reblogged this from crownedrose
- somniare-statu reblogged this from lostbeasts
- bikiniarze-beta reblogged this from fuckyeahdinoart
- cxcxcxcx reblogged this from zooplancton
- zooplancton reblogged this from fuckyeahdinoart
- mitzyedith likes this
- oneheadtoanother reblogged this from inhumanoid
- sparkylurkdragon reblogged this from fuckyeahdinoart
- livelifealittlelovely likes this
- radioactive-cannibal reblogged this from fuckyeahdinoart
- radioactive-cannibal likes this
- dannylebowsky likes this
- worldcuppycakes likes this
- ryliceracc reblogged this from fuckyeahdinoart
- gryphsnest reblogged this from fuckyeahdinoart
- shingeki-no-kum reblogged this from scientificillustration
- black-against-porcelain likes this
- summersetting likes this
- adamchuck likes this
- seitou likes this
- grace-eliza-williams reblogged this from scientificillustration
- grace-eliza-williams likes this
- quickquirk reblogged this from fuckyeahdinoart
- nstump likes this
- bosquetemplado reblogged this from fuckyeahdinoart
- ofkingsandlionhearts likes this