Weekly Fish – Crystal the Tiger Shark

Weekly Fish – Crystal the Tiger Shark

Tiger sharks, as you may have guessed, owe their name to the somewhat blotchy pattern of stripes they sport on their sides. This is a bit of a trope when it comes to animal names. Generally, if it has stripes and is deemed nice, you call it a zebra something (e.g., zebra fish, zebra finch); if it has stripes and is deemed dangerous, you call it a tiger something (e.g., tiger mosquito, tiger shark). In the case of tiger sharks the name seems to fit quite well on the whole though, as they are rather large, solitary apex predators, thus being true tigers of the sea. This week, however, I don’t want to talk about a species of fish, but an individual animal: meet Crystal. Continue reading “Weekly Fish – Crystal the Tiger Shark”

Weekly Fish – The Walking Cavefish

Weekly Fish – The Walking Cavefish

Mysterious dark caves consistently yield a wide variety of blind, pinkish-white creatures with unusual characteristics. A curious example of such an animal is the cave angelfish¬†Cryptotora thamicola, which uses its fins to walk with a gait very much like that of a salamander. Found only in a particular network of caves¬†in northern Thailand, it has been shown to energetically climb rocks and underground waterfalls. Continue reading “Weekly Fish – The Walking Cavefish”