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The Museum will be open on Wednesday, January 28, during regular hours, from 10 am to 5:45 pm. Due to the weather, some programs have been cancelled. Please check here for a full list, and check back for regular updates.

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Fish Out of Water

cuao fish

A new species of fish from tropical South America is confirming suspected roots to the loricariid catfish family tree. Lithogenes wahari shares traits with two different families of fish: the bony armor that protects its head and tail, and a grasping pelvic fin that allows it to climb vertical surfaces. The discovery of both of these characteristics in Lithogenes suggests to ichthyologists Scott Schaefer of the American Museum of Natural History and Francisco Provenzano of the Universidad Central de Venezuela that the common ancestor of the Loricariidae and Astroblepidae probably could grasp and climb rocks with its tail and mouth.

American Museum of Natural History

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