Marine animals all need salt water for survival. Land animals all need fresh water for survival. A Christian would say “How kind of my god to have provided each what it required.” Darwin would say, “Animals had no choice. They either had to adapt to thrive with the water type available or perish.” Scientist say the saltiness of the ocean has nothing to do with divine beneficence. It is simply that evaporation leaves behind the salt, raining fresh water on the land. The salt leached from the soils and transported by the river gradually builds up in the oceans. Creationism was bleeding edge science — 4000 years ago. Modern day Christians are overly attached to antique science because of its ancient holy books covered everything of interest in the day, including science, which in now embarrassingly obsolete.
~ Roedy (born: 1948-02-04 age: 64)