Palaeontology: A Hook to the Past Nicholas C. Fraser  Current Biology  Volume 26, Issue 20, Pages R922-R925 (October 2016) DOI: 10.1016/j.cub.2016.07.053 Copyright © 2016 Elsevier Ltd Terms and Conditions

Figure 1 The holotype of Drepanosaurus unguicaudatus. The late Triassic tetrapod Drepanosaurus unguicaudatus, MCSNB 5728, sported a massive sickle-like claw on each hand. It also had a peculiar claw-like element at the tip of the tail (photo: National Museums Scotland). Current Biology 2016 26, R922-R925DOI: (10.1016/j.cub.2016.07.053) Copyright © 2016 Elsevier Ltd Terms and Conditions

Figure 2 Skeleton of the silky anteater. The silky anteater, Cyclopes didactylus, NMS Z.2002.112.53, today employs a hook and pull action of the forelimb to reach insects within crevices in wood. Based on certain similarities in the arrangement of the forelimb elements, this is exactly the same technique that Pritchard and colleagues [1] suggest was used by Drepanosaurus more than 200 million years ago (photo: National Museums Scotland). Current Biology 2016 26, R922-R925DOI: (10.1016/j.cub.2016.07.053) Copyright © 2016 Elsevier Ltd Terms and Conditions