(Follow the monarch butterfly on its nearly 3,000-mile journey.) To give the seedlings on Nevado de Toluca the best chance of survival, the team planted the baby trees under "nurse plants ...

The area is not preparing for Halloween decorations but rather referring to the monarch butterfly migration. This happens twice a year, in the spring and in the fall, when butterflies travel from ...

The official state butterfly since 2000, monarch butterflies are facing a major ecological threat, according to experts. Local, Western populations of monarchs have declined by around 30% compared to ...

Butterfly Pavilion staff said that the migratory monarch’s numbers have declined almost 80% in the past couple of decades.

The migration of the monarch butterfly is one of the wonders of the natural world. Each autumn, a new generation of monarch butterflies is born in the northern United States and southern Canada.

It doesn’t happen.” His team collected oyamel fir seeds from elevations between 3,100 meters and 3,500 meters inside the Monarch Butterfly Biosphere Reserve in Michoacán state and grew them ...

In 2017, the team from this study gathered seeds from cones from eight strands of sacred fir in Mexico’s Monarch Butterfly Biosphere Reserve (MBBR). These trees grow at altitudes between 10,170 ...

The planting of non-native milkweeds along the migration path has resulted in the rise of a parasite called Ophryocystis elektroscirrha (OE), which infects and debilitates monarch butterflies.

Part of the butterflies’ remaining habitat — the fir trees in the Monarch Butterfly Biosphere Reserve in Michoacán — is slowly shifting upwards as the climate warms. But the firs will ...

The once ubiquitous monarch butterfly, a fixture of the Texas fall landscape and a crucial component of our food chain, is in a troubling decline. The National Wildlife Federation has observed a ...

The monarch butterfly is known by scientists as Danaus plexippus, which in Greek literally means "sleepy transformation." The name evokes the species' ability to hibernate and metamorphize. Adult ...