When one species is genetically similar to another species, their populations can often be mistaken for one and the same. This is exactly what has happened with Papilio solstitius, a tiger swallowtail ...

CHICO — It’s pipevine swallowtail season, meaning black and orange caterpillars are milling about all through Bidwell Park. Chico Park and Natural Resources Manager Shane Romain is advising park goers ...

We are all used to seeing caterpillars hide themselves away and emerge as butterflies or moths, but the species featured in this YouTube clip emerges as another caterpillar. There is a very good ...

Black swallowtail caterpillars eat plants like fennel, parsley and dill, absorbing toxins for protection from predators. When threatened, the caterpillar uses a forked tongue-like gland called ...