“Until recently, the gentoo penguin (aka Pygoscelis papua) was thought to be a single species spread across several areas. However a team of penguin experts led by scientists from University of California, UC Berkeley, and several institutions from Chile recently studied their genes and confirmed the gentoo is actually four separate species.

Gentoos tend to stick close to their breeding colonies, returning to the same nesting sites year after year. Over time, this meant different populations became isolated and adapted to their local environments, eventually evolving into separate species. The Eastern gentoo (Pygoscelis taeniata) lives on the Crozet, Marion, and Macquarie Islands, while the Northern gentoo (Pygoscelis papua) is found around the Falkland and Martillo Islands. The Southern gentoo (Pygoscelis ellsworthi) has the largest population and inhabits the Antarctic Peninsula, coastal Antarctica, and South Georgia.

The fourth and newly recognized, southeastern gentoo (Pygoscelis kerguelensis) lives on the remote Kerguelen Islands in the southern Indian Ocean, around 450 kilometers (279 miles) from the nearest land. It looks similar to other gentoo penguins but is genetically distinct enough to be recognized as a separate species. Its distinct size and vocalizations are further clues that set it apart.”

From My Modern Met.

“Between 11 million and 16 million years ago, during the high sea levels of the middle Miocene period, the ancestors of the Indus River dolphin entered the muddy waters of what is the Indus Basin today. Over millennia, they adapted to their new environment through extraordinary evolutionary shifts, developing sophisticated echolocation while gradually losing their eyesight.

Today, these blind mammals, living mostly in Pakistan (with a small population in northwestern India), navigate the river’s shallow, dry-season waters by swimming on their sides. Yet, these evolutionary marvels offer little defense against the modern transformation of their habitat.

That habitat is fragmented by vast networks of dams, human-made canals and irrigation barrages. Consequently, the Indus River dolphin (Platanista minor), locally known as the bhulan, has seen its historical range slashed by approximately 80%. The species, which boasted an estimated population of 10,000 in the late 19th century, plummeted to just 617 individuals by 2001 before rebounding to around 2,000 over the next decade. The Indus River dolphin is listed as endangered on the IUCN Red List.

In response, Pakistan’s government has officially created the Punjnad Indus River Dolphin Sanctuary in June 2026, safeguarding nearly 200 kilometers (123 miles) of the river in Punjab. This new zone connects with an existing protected area in Sindh province, southeastern Pakistan, that creates a contiguous 400-km (249-mi) stretch of legally protected habitat, offering a critical lifeline to one of the world’s rarest freshwater dolphins.”

From Mongabay.

“Scientists have discovered nine new deep-sea sponge species off Alaska, offering new insights into the region’s largely unexplored marine biodiversity.

The National Oceanic and Atmospheric Administration (Noaa) announced the discovery on Thursday, saying the species were found in the Gulf of Alaska and the Aleutian Islands. The findings bring the total number of known sponge species in Alaska to 232.

The specimens were collected during Noaa Fisheries’ annual bottom-trawl surveys, which monitor groundfish and shellfish stocks. Researchers analyzed samples collected as far back as 2012, describing the new species in two recent scientific papers.”

From The Guardian.

“A sea turtle crawled out of the surf in southern California last weekend around sunset and started laying eggs in the sand.

People on Huntington Beach who saw the female olive ridley sea turtle were shocked and excited. And they weren’t the only ones freaking out, said Justin Viezbicke, the California stranding coordinator for the National Oceanic and Atmospheric Association (Noaa).

'This is the first documented case of a turtle nesting on the west coast,' Viezbicke said…

While it’s too soon to tell, it’s also possible that these first recorded US coastal nests could herald a broader northward shift in the olive ridley turtle’s nesting patterns.”

From The Guardian.