78/150: Jumping bloodsuckers Batman! It’s a flea!


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Animalia: Arthropoda: Insecta: Siphonaptera: Ceratophyllidae: Ceratophyllinae: Ceratophyllus: Ceratophyllus vison (Baker, 1904)

This species of flea is an ectoparasitic insect of squirrels, living on red squirrels east of the Rocky Mountains and Douglas squirrels to the west. Being an ectoparasite means that they live on a host, so fleas have evolved particular features that help them live such a lifestyle, such as a loss of wing development, strong claws for grasping onto the host, and a laterally flattened body to move through the hair or fur. Continue reading “78/150: Jumping bloodsuckers Batman! It’s a flea!”