New fossil evidence shows that at least one early turtle relative evolved their characteristic beaks before their shells, according to a report in [...]
To be honest, the taxonomic status of sponges has never worried me much, nor has it impinged on my daily life. Apparently though, the debate as to where sponges fit into the metaphorical ‘tree of life’ has finally been [...]
Researchers at James Cook University in the ARC Centre of Excellence for Coral Reef Studies (Coral CoE) have uncovered an interesting feature of the Damsel reef fish family. We watch our fish dart in and out of crevices when they get scared in our aquariums but little did we know they are, at [...]
“Yellowtail Damselfish” C. parasema Range: Philippines north to the Ryukyu Islands, south to Sabah, Java Sea, Flores Etymology: Greek “streamer”, allegedly in reference to the pale tail Size: 5cm Aquarium Rarity: Abundant ID: Entirely blue, except for a bright yellow caudal fin and [...]
“Springer’s Damselfish” C. springeri Range: Indonesia, though likely absent from the Java Sea and Sumatra. Etymology: After ichthyologist Dr. Victor Springer of the Smithsonian Size: 5cm Aquarium Rarity: Common ID: Mostly blue, with little black exposed. Notes: Very similar to the Melanesian [...]
Damselfishes are usually thought of as a cheap staple of the aquarium trade, more often treated as “starter fish” than desirable species in their own right. But such prejudices belie the fascinating evolutionary story these fishes have to tell. One group in particular—the Chrysiptera [...]
Throughout geological time, there have been many shifts in marine animal species. Amongst these shifts is a transition known as the Mesozoic Marine Revolution. This evolutionary phenomenon not only overturned a number of bottom-dwelling marine species, it transformed the appearance of the ocean [...]
Although corals are considered one of the earliest, most primitive animal groups on the planet, the stony corals that grace our reef aquariums with color and vibrance actually arose later than some of us have been led to believe. It is widely accepted that our ocean’s corals have been derived [...]