Signal Crayfish - Pacifastacus leniusulus

When talk about invasive species includes mention of their parasites, stories usually focus on an absence of the later. In fact, when species invade new habitats, one of their biggest advantages is liberation from their usual “bugs.” There are several ways that invasive species escape their parasites, and studies show that relatively few are replaced by parasites native to invaded ecosystems . This means…

Koalas are in danger of extinction

Habitat loss and degradation remains one of the leading threats to wildlife around the world. And even when large tracts of land are left intact, habitats can be fragmented by the construction of roads, railways, and power-line right-of-ways. Animals that are unable to traverse these structures can become isolated and unable to find food or mates….

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Scientists now believe that scorpions’ fluorescent exoskeletons may help them to find cover during the night. The scorpion’s cyan-green glow can be attributed to two chemicals, noharmane and hymnecromone, that are deposited in the exoskeleton during sclerotization, a biological process by which arthropods are able to harden their exoskeletons. Interestingly, neither young nor recently molted…

honeybee pollination

Pollinators are important for the production of ~75% of the world’s leading crops, but honeybees are not the only insects responsible for providing these services. The vanilla orchid, for example, can only be pollinated by a specific type of solitary bee, while Theobroma cacoa – the source of chocolate – is only pollinated by a tiny fly….