SEA MONKEYS KITS
Sea Monkeys? Whoever came up with that name knew what they were talking about. These fascinating creatures, which are actually brine shrimps. will perform all sort of acrobatics (or is it aquabatics?) as they feed and interact with each other. They’re easy to keep and fascinating to watch. The reason that they make good pets is that their eggs can remain viable even when completely dried out. It’s an evolutionary strategy that enables them to survive in areas when temporary pools exist, they feed and breed when the rains form pools and puddles and then survive as eggs when the pools dry out.
The following snippet, from the estimable Wikipedia gives an idea of the evolutionary background of these fascinating creatures:
Artemia is a genus of aquatic crustaceans known as brine shrimp. Artemia, the only genus in the family Artemiidae, has changed little externally since the Triassic period. The historical record of the existence of Artemia dates back to 982 from Urmia Lake, Iran, although the first unambiguous record are the report and drawings made by Schlösser in 1756 of animals from Lymington, England.Artemia populations are found worldwide in inland saltwater lakes, but not in oceans. Artemia are able to avoid cohabitating with most types of predators, such as fish, by their ability to live in waters of very high salinity up to 250‰. The ability of the Artemia to produce dormant eggs, known as cysts, has led to extensive use of Artemia in aquaculture.
The cysts may be stored for long periods and hatched on demand to provide a convenient form of live feed for larval fish and crustaceans. Nauplii of the brine shrimp Artemia constitute the most widely used food item, and over 2000 tonnes of dry Artemia cysts are marketed worldwide annually. In addition, the resilience of Artemia makes them ideal animals for running biological toxicity assays and is now one of the standard organisms for testing the toxicity of chemicals. A breed of Artemia is sold as a novelty gift under the marketing name Sea-Monkeys.
Filed under: Sea Monkeys
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