Pseudogout is a joint disease that can cause attacks of arthritis. Like gout, the condition involves the formation of crystals in the joints. But in pseudogout, the crystals are formed from a salt instead of uric acid. Alternative Names. Calcium pyrophosphate dihydrate deposition disease; CPPD disease.
Every autumn, around three million Monarch butterflies will travel around 3,000 miles to inhabit the mountains of central Mexico or small groves of trees along Californiaâs coast.
Smart nature straight to your inbox every week. Migration season is upon us, but it isnât just birds that are migrating. We know that monarch butterflies make a complex annual migration, but the record for the longest insect migration (twice the distance of monarchs) is held by a dragonfly â the wandering glider. Unfortunately, beyond this remarkable example, we know very little about dragonfly migration.