Tag

Whales

All articles tagged with #whales

Ocean's Deep Graveyard: 500-Whale Necropolis Reveals Deep-Sea Evolution
science1 month ago

Ocean's Deep Graveyard: 500-Whale Necropolis Reveals Deep-Sea Evolution

Scientists exploring the Diamantina Fracture Zone in the Indian Ocean documented about 485 whale‑fall sites across a 1,200 km stretch, including 476 fossilized whales and five active whale‑fall ecosystems, some skulls dating to ~5.26–5.3 million years ago. The find, described in Nature, is the largest, deepest whale graveyard yet and acts as a living archive of beaked whale evolution, while showing that deep‑sea ecosystems can thrive around whale falls via chemosynthetic microbial communities, Osedax worms, and other life concentrated around these carcasses.

70-Year Fossil Mix-Up Reveals Ancient Whales in Mammoth Labels
science1 month ago

70-Year Fossil Mix-Up Reveals Ancient Whales in Mammoth Labels

Alaskan fossils long labeled as mammoth bones were found to be two whale species (minke whale and North Pacific right whale) after radiocarbon dating showed ages of 2,000–3,000 years — far younger than mammoths. Isotopic and DNA testing confirmed cetacean origin and marine diets, and the remains, stored for seven decades in a museum, were likely mislabeled or misattributed since the 1950s. The discovery prompts questions about how coastal whale remains ended up inland and adds to a growing pattern of fossil misidentification.

The Mystery of the 52-Hz Whale: A Solo Song from the Ocean's Quiet Giant
science5 months ago

The Mystery of the 52-Hz Whale: A Solo Song from the Ocean's Quiet Giant

A U.S. Navy hydrophone recorded a strange 52-Hz whale call in the Pacific starting in 1989, a frequency higher than typical baleen whales. Woods Hole researchers followed the single-singer call for about 12 years, naming the animal Blue 52, though its exact species and identity remain unknown. Theories include a malformation or a hybrid; there is no evidence the whale is truly lonely. The case popularized the idea of the “loneliest whale,” intertwined with concerns about how ship noise affects whale communication, and the animal has never been visually observed.

Global Marine Migrations: Impact of Climate Change on Longest Animal Routes
nature6 months ago

Global Marine Migrations: Impact of Climate Change on Longest Animal Routes

The article highlights some of the world's longest animal migrations, including the Arctic Tern's pole-to-pole journey of up to 59,000 miles annually, whale migrations between feeding and breeding grounds, and remarkable bird and insect flights across oceans and continents, illustrating the incredible endurance and adaptation of these species in connecting ecosystems worldwide.

Rare prehistoric Australian whales with razor-sharp teeth and tennis-ball eyes discovered
science11 months ago

Rare prehistoric Australian whales with razor-sharp teeth and tennis-ball eyes discovered

Recent fossil discoveries in Victoria, Australia, reveal a diverse array of bizarre, small baleen whales called mammalodontids that lived around 25 million years ago, including the newly identified Janjucetus dullardi, which was about two meters long and likely a juvenile. These whales lacked baleen and had unique features, representing an extinct branch of whale evolution that thrived during a warm, shallow sea environment before going extinct around 22 million years ago due to climate cooling.