Crustacean silk evolved six times, claim scientists.  Silk is a protein fibre, best known for being produced by silkworms (larvae of moths).  Other insects including bees and flies also make silk.  Less well-known silk producers include tiny water dwelling shrimp like crustaceans called amphipods. 
Two scientists from University of Santa Barbara (USA) carried out a survey of silk producing amphipods using preserved and living specimens from many different places.  Adding data from the scientific literature they drew up an evolutionary tree and concluded silk production had evolved independently many times and is therefore an example of convergent evolution.

They also collected genetic material from some living amphipods and found two genes that also occur in silkworms.  Siena McKim, one of the researchers commented that silk making is unlikely to date back to a common ancestor between moths and amphipods, so why and how these genes arose is “is what keeps me up at night.”

Reference: Science (AAAS) News 12 January 2024

Editorial Comment:  We have an instant cure for this biologist’s insomnia – forget about trying to fit such diverse creatures as moths and amphipods into artificial evolutionary trees and accept that living things were created as separate distinct kinds.  Finding the same genes is not an indicator of a common ancestor, but evidence of the Creator who gave the same genetic information to different kinds where He wanted them to have the same function.

Creation Research News 6 March 2024

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