Evolution: A catfish that can strike its prey on land

@article{Wassenbergh2006EvolutionAC,
  title={Evolution: A catfish that can strike its prey on land},
  author={Sam Van Wassenbergh and Anthony Herrel and Dominique Adriaens and Frank Huysentruyt and Stijn Devaere and Peter Aerts},
  journal={Nature},
  year={2006},
  volume={440},
  pages={881-881}
}
An important step towards understanding the evolution of terrestriality in vertebrates is to identify how the aquatic ancestors of tetrapods were able to access ground-based prey. We have discovered that the ‘eel catfish’ Channallabes apus, an inhabitant of the muddy swamps of tropical Africa, has a remarkable ability to forage and capture prey on land. The animal's capacity to bend its head down towards the ground while feeding seems to be an essential feature that may have enabled fish to… 
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References

SHOWING 1-8 OF 8 REFERENCES
Kinematics of aquatic and terrestrial prey capture in Terrapene carolina, with implications for the evolution of feeding in cryptodire turtles.
TLDR
It is concluded that the function of hyoid depression during aquatic feeding in cryptodire turtles is to prevent the forward motion of the predator from pushing the prey away (compensatory suction), and it is not appropriate to use extant turtles in attempts to reconstruct the terrestrial feeding mechanisms of primitive amniotes.
The origin and early diversification of tetrapods
TLDR
Devonian tetrapods were more fish-like than believed previously, whereas Lower Carboniferous tetrapod faunas contain early representatives of the amphibian and amniote lineages.
The axial skeleton of the Devonian tetrapod Ichthyostega
TLDR
A new reconstruction of Ichthyostega is shown based on extensive re-examination of original material and augmented by recently collected specimens and reveals hitherto unrecognized regionalization in the vertebral column.
Evolution of the feeding mechanism in primitive actionopterygian fishes: A functional anatomical analysis of Polypterus, Lepisosteus, and Amia
The comparative functional anatomy of feeding in Polypterus senegalus, Lepisosteus oculatus, and Amia calva, three primitive actinopterygian fishes, was studied by high‐speed cinematography (200
A test of mouth-opening and hyoid-depression mechanisms during prey capture in a catfish using high-speed cineradiography
TLDR
Results show that the angulo-ceratohyal ligament was previously hypothesised to play a part in mouth opening, but rather functions as a hyoid-elevator during mouth closure, and that hyoid depression is exclusively achieved by the four-bar mechanism involving neurocranial elevation and pectoral girdle retraction.
Microscopic studies of the paraphysis of the turtle Trachemys (scripta) dorbigni (Duméril & Bibron, 1835)
TLDR
The presence of vesicles in the cytoplasm of epithelial cells, fenestrations, and macropinocytosis vesicle in the vascular endothelium suggest absorption and secretion functions, which characterizes this structure as a circumventricular organ (CVO).
A Devonian tetrapod-like fish and the evolution of the tetrapod body plan
TLDR
The discovery of a well-preserved species of fossil sarcopterygian fish from the Late Devonian of Arctic Canada that represents an intermediate between fish with fins and tetrapods with limbs, and provides unique insights into how and in what order important tetrapod characters arose is reported.