Uncommon Descent Serving The Intelligent Design Community


One genus of fish EATS bioluminescence from prey and displays it

This is not horizontal gene transfer; the fish are eating and repurposing the enzymes rather than incorporating the genes for producing them. But if the fish can in fact steal the enzymes, that’s something to keep in mind as we hear evolutionary biologists explain to us how this and other traits evolved via natural selection acting on the random mutations of the fish’s genome (Darwinism)… Read More ›

Your inner fish? Did fish really show self-awareness?

Yes, if you believe the mirror test proves it: The bluestreak cleaner wrasse has passed the famous mirror test for self-recognition (originally intended for primate apes and monkeys). According to a recent paper (open access), three out of four fish tested by researchers from Osaka City University in Japan were able to learn to identify the object in a mirror as their own images. But what does that mean? When chimpanzees, dolphins, elephants, and magpies passed the test1, researchers theorized that these animals, recognized as intelligent, were demonstrating a concept of “self.” Now they are not so sure. Is the cleaner wrasse, which grooms other fish for parasites, really self-aware? Are fish much smarter than we think? More. But what Read More ›