Knowing that the birds do some extracurricular exploration when they reach their breeding grounds means scientists may need to expand the range of future studies.

High-Tech Tracking Reveals 'Whole New Secret World of Birds'

A study of Kirtland’s warblers found that some continue exploring long distances even after they reach their breeding grounds

A stone point from Chiquihuite cave

Discovery in Mexican Cave May Drastically Change the Known Timeline of Humans' Arrival to the Americas

In a controversial new study, scientists cite artifacts dating the event to more than 26,000 years ago

Sunrise at the Tongariki site on Easter Island

Native Americans and Polynesians Met Around 1200 A.D.

Genetic analysis of their modern descendants shows that people from the Pacific Islands and South America interacted long before Europeans arrived

Monitor local animal populations, identify plants, transcribe women astronomers' notes, bird-watch and more.

Seventy-Five Scientific Research Projects You Can Contribute to Online

From astrophysicists to entomologists, many researchers need the help of citizen scientists to sift through immense data collections

The ICARUS antenna (right) on the exterior of the International Space Station.

The International Space Station Just Became a Powerful Tool for Tracking Animal Migration

The so-called 'internet of animals,' powered by an antenna aboard the ISS, will track thousands of creatures across the entire planet

Some eastern monarch butterflies travel about 3,000 miles to reach their overwintering sites in Mexico.

Hand-Reared Monarch Butterflies Are Weaker Than Their Wild Cousins

In the wild, only about one in 20 caterpillars grows up to be a butterfly

Paleontologists crossing the Rio Yurúa in Amazonian Perú, with the Santa Rosa fossil site in the background.

More Than 30 Million Years Ago, Monkeys Rafted Across the Atlantic to South America

Fossil teeth uncovered in Peru reveal that an extinct family of primates, thought to have lived only in Africa, made it across the ocean

A gray whale "spyhopping" off the coast of Alaska. Gray whales migrate over 12,000 miles along North America's west coast.

How Storms on the Sun Interfere With Whale Migration

The new research gives weight to the hypothesis that gray whales use Earth’s magnetic field to navigate

Chagyrskaya Cave in Siberia's Altai Mountains, where researchers uncovered Neanderthal stone blades that resemble tools excavated in Europe

Neanderthals May Have Trekked 2,000 Miles to Siberia

A new tool analysis suggests European Neanderthals migrated east at least twice

A 5,700-year-old piece of birch tar, chewed as gum, contains the genome, mouth microbes, and even dietary information about its former chewer.

Human Genome Recovered From 5,700-Year-Old Chewing Gum

The piece of Birch tar, found in Denmark, also contained the mouth microbes of its ancient chewer, as well as remnants of food to reveal what she ate

A photograph of a red slipped ware globular pot placed near the head of the skeleton that yielded ancient DNA. There are lines as well as indentations on the upper right side, just below the rim. The indentations on the body of the pot could be examples of ancient graffiti and/or "Indus script."

Rare Ancient DNA Provides Window Into a 5,000-Year-Old South Asian Civilization

The Indus Valley Civilization flourished alongside Mesopotamia and Egypt, but the early society remains shrouded in mystery

The dig site at Cooper's Ferry.

Idaho Site Shows Humans Were in North America 16,000 Years Ago

The site at Cooper's Ferry along the Salmon River is more evidence humans first traveled along the coast, not via an ice-free corridor

An ancient population of Arctic hunter-gatherers, known as Paleo-Eskimos, made a significant genetic contribution to populations living in Arctic North America today.

Ancient DNA Reveals Complex Story of Human Migration Between Siberia and North America

Two studies greatly increase the amount of information we have about the peoples who first populated North America—from the Arctic to the Southwest U.S.

Tiger sharks appear to prey on migrating songbirds that fall into the ocean during autumnal storms

Baby Sharks Do (Do, Do, Do, Do, Do) Eat Songbirds

A survey of 105 tiger sharks’ stomach contents revealed the remains of 11 land-based bird species

Nine Gray Whales Have Washed Up Dead in the San Francisco Bay Area

Some were hit by ships, but others died of malnourishment—a sign that the whales’ Arctic food sources may have been disrupted

Close-up of a wildebeest, also called gnus or wildebai, in the grasslands of the Masai Mara in Kenya, August 2018.

Twelve Epic Migratory Journeys Animals Take Every Spring

As temperatures rise and foliage blooms in the north, creatures from insects to whales set out for long treks across the planet

To help your feathered friends, start by turning off excess outdoor lighting as often as possible.

These Cities Are the Most Dangerous for Migrating Birds

A new study has identified Chicago, Dallas and Houston as the riskiest spots during both the spring and fall migrations

Artistic reconstruction of two individuals of Peregocetus, one standing along the rocky shore of nowadays Peru and the other preying upon fish. The presence of a tail fluke remains hypothetical.

How Did Whales Reach the Americas? A Four-Legged Fossil Offers New Clues

Dubbed Peregocetus pacificus, the newly-described species was adapted to life both in and out of the water

To find out what's going on outside, people love to search for  it online.

Bird Migrations, Floral Blooms and Other Natural Phenomena Cause Seasonal Spikes in Wikipedia Searches

A new study has found that pageview trends for various plants and animal species correspond to real-world seasonal patterns

Dragonflies Embark on an Epic, Multi-Generational Migration Each Year

Monarch butterflies aren't the only migratory marathoners in North America

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