But the extinct giant short-faced macropod Procoptodon goliah was even bigger, weighing in at ~240kg! This large kangaroo was so big that it probably could not hop & instead had a "bipedal striding gait" (Janis et al. 2014) #2021MMM https://t.co/UosfBmIu1E
Locomotion in extinct giant kangaroos: were sthenurines hop-less monsters?
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May 2020 – Jul 2025Where it's discussed
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Facebook11 posts
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X / Twitter10 posts
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AI synopsis
What people are saying
The collection demonstrates a shared enthusiasm for the study of extinct giant kangaroos, with posts highlighting their large size and unique locomotion, such as the mention of a 'bipedal striding gait' for Procoptodon goliah and comments like 'Too big' reflecting amazement at their size. The tone ranges from playful excitement to informative engagement, which collectively indicates strong interest and moderate impact of the research.
Most posts accept or appreciate the research, highlighting the significance of understanding extinct kangaroo locomotion, as seen in comments like 'If you are not absolutely DELIGHTED...' and references to the findings.
The discussion shows high interest, with posts expressing enthusiasm and curiosity about the subject, exemplified by phrases such as 'LISTEN' and comments about the large size and biomechanics of the kangaroos.
Posts engage with specific details about anatomy and locomotion, including mentions of rigid spines and walking gait, suggesting a thoughtful exploration of the research findings.
Communications convey that the research influences perceptions of extinct species and broadens understanding of their movement, indicated by references to how their anatomy differs from expectations of hopping behavior.
Abstract in brief
- Extinct giant kangaroos called sthenurines were likely not capable of hopping; instead, they probably used a bipedal walking gait, similar to a "striding" movement seen in some modern tree-kangaroos.
- These kangaroos evolved to be large and robust, with some species like Procoptodon goliah reaching nearly 240 kg, but their anatomy—such as stiff spines and specialized limbs—probably made traditional hopping biomechanically difficult.
- Evidence from their bone structure suggests they adapted for a different style of locomotion, supporting an upright stance and supporting their weight on one leg at a time, indicating they used a slow, bipedal walk rather than hopping.
Top posts
Most liked on X and Bluesky@TessaDare LISTEN, if you are not absolutely DELIGHTED in the mere existence of people who study locomotion in extinct giant kangaroos, I don't wanna come to your party anyway. (ref: my favorite accidental click to test something in my library many many years ago-https://t.co/6Jx5eIatLq)
@phoexalt47 Too big. The lack of hopping is also reflected in their anatomy: sthenurines had a rigid lumbar spine (not a flexible one for extra "spring" in the hop) and heel bones less resistant to stress. https://t.co/6DpgQPae1b https://t.co/geSAo5psRP
@EdoardoElric Para correr. https://t.co/gn42uDf1xO
@Schaffer5994 @HJ_arts02 https://t.co/2p3fW3IzvT https://t.co/WMLOf58Moz
RT @Mammals_Suck: But the extinct giant short-faced macropod Procoptodon goliah was even bigger, weighing in at ~240kg! This large kangaroo…
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@Schaffer5994 @HJ_arts02 https://t.co/2p3fW3IzvT https://t.co/WMLOf58Moz
@phoexalt47 Too big. The lack of hopping is also reflected in their anatomy: sthenurines had a rigid lumbar spine (not a flexible one for extra "spring" in the hop) and heel bones less resistant to stress. https://t.co/6DpgQPae1b https://t.co/geSAo5psRP
@TessaDare LISTEN, if you are not absolutely DELIGHTED in the mere existence of people who study locomotion in extinct giant kangaroos, I don't wanna come to your party anyway. (ref: my favorite accidental click to test something in my library many many years ago-https://t.co/6Jx5eIatLq)
RT @Mammals_Suck: But the extinct giant short-faced macropod Procoptodon goliah was even bigger, weighing in at ~240kg! This large kangaroo…
RT @Mammals_Suck: But the extinct giant short-faced macropod Procoptodon goliah was even bigger, weighing in at ~240kg! This large kangaroo…
RT @Mammals_Suck: But the extinct giant short-faced macropod Procoptodon goliah was even bigger, weighing in at ~240kg! This large kangaroo…
RT @Mammals_Suck: But the extinct giant short-faced macropod Procoptodon goliah was even bigger, weighing in at ~240kg! This large kangaroo…
RT @Mammals_Suck: But the extinct giant short-faced macropod Procoptodon goliah was even bigger, weighing in at ~240kg! This large kangaroo…
But the extinct giant short-faced macropod Procoptodon goliah was even bigger, weighing in at ~240kg! This large kangaroo was so big that it probably could not hop & instead had a "bipedal striding gait" (Janis et al. 2014) #2021MMM https://t.co/UosfBmIu1E
@EdoardoElric Para correr. https://t.co/gn42uDf1xO
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