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Whales

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The Mystery of the 52-Hz Whale: A Solo Song from the Ocean's Quiet Giant
science21 days 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.

via BBC Wildlife Magazine|
#52-hertz#acoustics#loneliest-whale
Global Marine Migrations: Impact of Climate Change on Longest Animal Routes
nature2 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.

via Visual Capitalist|
#animal-migrations#arctic-tern#birds
Rare prehistoric Australian whales with razor-sharp teeth and tennis-ball eyes discovered
science6 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.

via The Conversation|
#australia#fossils#janjucetus-dullardi
Ethereum Faces Selling Surge and Price Risks Amid Market Challenges
cryptocurrency8 months ago

Ethereum Faces Selling Surge and Price Risks Amid Market Challenges

Ethereum experienced a significant sell-off with $321 million sold in one minute, driven by whale and retail selling, causing the price to drop from $2.5K to $2.3K before rebounding to $2.4K. Despite intense selling pressure and negative netflows indicating bearish sentiment, some buyers absorbed the dip, leading to a brief recovery. The ongoing battle between bulls and bears will determine if ETH can reclaim key levels or face further declines.

via AMBCrypto|
#cryptocurrency#ethereum#market-sentiment
Humpback Whales' Bubble Ring Communication Mysteries Unveiled
science8 months ago

Humpback Whales' Bubble Ring Communication Mysteries Unveiled

Scientists have discovered that humpback whales create smoke ring-like bubbles as a playful and possibly communicative gesture towards humans, which could provide insights into how extraterrestrial civilizations might attempt contact, supporting the idea that intelligent non-human species use curiosity and friendly interactions to communicate.

via Daily Mail|
#bubble-rings#communication#extraterrestrial-life