Freshwater Fish and the Flood

Here’s a question that everyone seems to want an answer to: how did freshwater organisms survive a salty flood? A recent article at Your Origins Matter, Flood Survivors – derived from an Acts & Facts article by John Morris from 2011 called Fish in the Flood – tries to offer some solutions. After first acknowledging that survival would have been very difficult, and that most didn’t make it, Morris produces his first idea:

In the complex of events and conditions that made up the Flood, certainly there were pockets of fresh water at any one time. Remember, it was raining in torrents, and we can expect that the rain water was fairly fresh. Many studies have shown that waters of various temperatures, chemistries, and sediment loads do not tend to mix; they tend to remain segregated in zones. It would be unlikely for any one area to retain such zones for very long during the tumult of the Flood, but on a worldwide scale, some such segregated zones would have existed at any given time.

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Zebrafish Limbs

Zebrafish embryosFor Monday Jeff Tomkins writes “Did Scientists Make Fish Grow Hands?” The subject is a recent Developmental Cell paper called Hoxd13 Contribution to the Evolution of Vertebrate Appendages, which describes and experiment on zebrafish that induced them to grow what look more like limbs than fins, by promoting the expression of the Hoxd gene. This plugs a gap in our knowledge of how land animals evolved from fish – though, obviously, Tomkins disagrees.

A recent news story featured a variety of science writers repeating the meme “Fish grow ‘hands’ in genetic experiment.” These sensationalized stories attempted to describe a new genetics research study published in the journal Developmental Cell. The primary results of the study actually produced data that refuted the accompanying evolutionary hype.

Reference to memetics from a creationist cracks me up, but I suppose it’s now part of the general lexicon. Continue reading