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- Animal movement can be an important factor in determining ecological niche.
- Scientists assumed that animals reduce locomotor energy usage by doing gait movement tuned to the natural frequencies of related body parts.
- Researchers demonstrate that this allows them to estimate the preferred step frequency and walking speed of T-rex.
- The tail of dinosaur that walks in two legs was actively involve in walking.
- However, the tail was suspended passively by the caudal interspinous ligaments which allowed for energy storage through elasticity.
- To maintain high elastic energy storage, walking steps and natural frequencies would have to be complemented.
- Researchers determined the tail natural frequency to be 0.66 per second and the walking speed to be 1.28 meters per second.
- The walking speed in this study was found to be lower than earlier estimations for large theropods.
Sources:
van Bijlert Pasha A., van Soest A. J. ‘Knoek’ and Schulp Anne S. (2021). Natural Frequency Method: estimating the preferred walking speed of Tyrannosaurus rex based on tail natural frequencyR. Soc. open sci.8201441201441
http://doi.org/10.1098/rsos.201441
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