Female monarchs have thicker wings that make them sturdier and more efficient fliers than their male counterparts, a key attribute that increases their chances of survival during annual migrations.
Plants and animals alter their behaviors based on the seasons. Humans, it turns out, are no different. Here are just a few ways we change with the season.
Dolly Varden, an Alaskan trout species, are able to retire from migrating each year after growing big enough to store and utilize fat reserves. This is the only known species that partakes in such a retirement.
Not all shorebirds use the same migratory strategy: some birds making long migrations tend to remain at their rest stops for longer periods and gain weight faster than those making shorter trips.
European rollers are facing deforestation in Europe and their yearly winter migration to Africa is getting tougher each year. Now researchers have identified key areas that will help conservationists better protect the threatened species.
Unlike their human counterparts in California, Monarch butterflies are actually benefitting from the longstanding drought – more specifically, they're thriving on drought-tolerant milkweed which homeowners are planting to replace more thirsty lawns.
Among all bat species, African straw-colored fruit bats are record-holding flyers. This enables them to successfully forage for food, while spreading seeds and pollen over wide-spread areas of Africa.
Americans have depended on groundhogs for tips on when spring will arrive for over two centuries; now scientists say they can do better with new modeling software. Here's their prediction for the coming year.
After sequencing a genome of an ancient African male skull, researchers revealed more about the early humans' migration and introduction of farming in East Africa.
It turns out Eurasian reed warblers rely on a geomagnetic map to point them in the right direction during their spring migrations.
Pathogen-carrying ticks are hitching rides from Central and South America on migratory birds.
Researchers from Linnaeus University closely examined migrating patterns of pike in the Baltic Sea and found that timing is the key to survival.
Every year, monarch butterflies migrate south or west to escape cold northern climates. To better understand this annual migration, reseachers from Washington State University have been breeding and releasing butterflies that are labeled with identification stickers.
Elephants Check in at the Mfuwe Lodge [VIDEO]
After tagging over 500 bluefin tuna, researchers have determined that the internal temperature of Bluefin Tuna can be used to indentify where the fish feed and how impact ocean temperatures impact them. This discovery will help conservationists better protect the threatened species.