26667(1).mp4 Apr 2026

: This research uses high-speed video recordings of helmeted guineafowl traversing mud to validate (or challenge) the accuracy of calculating animal speeds from fossil footprints.

: The file 26667(1).mp4 is a supplementary recording showing the guineafowl walking on compliant (muddy) surfaces , used by researchers to measure stride duration and frame rate for speed calculation. Repository Usage 26667(1).mp4

: Speed from fossil trackways: calculations not validated by extant birds on compliant substrates . : This research uses high-speed video recordings of