Spirostomum uses a calcium-activated protein network to contract at remarkable speed without conventional muscle fibers. In less than five milliseconds, the aquatic single-celled organism Spirostomum ambiguum can shrink to one quarter of its body length, a movement hundreds of times faster than a human blink. Researchers have now traced that speed to an unusual calcium-activated […]
A Massive 29-Square-Mile Iceberg Hit an Island and Kept Going
A giant 29-square-mile iceberg broke from Greenland’s Petermann Glacier and survived a collision with Joe Island that might have shattered a more fragile berg. Summer is the busiest time of year for iceberg activity in Greenland’s glacier-fed fjords, and 2026 brought another dramatic example. In August, a huge iceberg separated from Petermann Glacier on Greenland’s […]
A Massive 29-Square-Mile Iceberg Hit an Island and Kept Going
A giant 29-square-mile iceberg broke from Greenland’s Petermann Glacier and survived a collision with Joe Island that might have shattered a more fragile berg. Summer is the busiest time of year for iceberg activity in Greenland’s glacier-fed fjords, and 2026 brought another dramatic example. In August, a huge iceberg separated from Petermann Glacier on Greenland’s […]
A Massive 29-Square-Mile Iceberg Hit an Island and Kept Going
A giant 29-square-mile iceberg broke from Greenland’s Petermann Glacier and survived a collision with Joe Island that might have shattered a more fragile berg. Summer is the busiest time of year for iceberg activity in Greenland’s glacier-fed fjords, and 2026 brought another dramatic example. In August, a huge iceberg separated from Petermann Glacier on Greenland’s […]
A Massive 29-Square-Mile Iceberg Hit an Island and Kept Going
A giant 29-square-mile iceberg broke from Greenland’s Petermann Glacier and survived a collision with Joe Island that might have shattered a more fragile berg. Summer is the busiest time of year for iceberg activity in Greenland’s glacier-fed fjords, and 2026 brought another dramatic example. In August, a huge iceberg separated from Petermann Glacier on Greenland’s […]
A Massive 29-Square-Mile Iceberg Hit an Island and Kept Going
A giant 29-square-mile iceberg broke from Greenland’s Petermann Glacier and survived a collision with Joe Island that might have shattered a more fragile berg. Summer is the busiest time of year for iceberg activity in Greenland’s glacier-fed fjords, and 2026 brought another dramatic example. In August, a huge iceberg separated from Petermann Glacier on Greenland’s […]
A Massive 29-Square-Mile Iceberg Hit an Island and Kept Going
A giant 29-square-mile iceberg broke from Greenland’s Petermann Glacier and survived a collision with Joe Island that might have shattered a more fragile berg. Summer is the busiest time of year for iceberg activity in Greenland’s glacier-fed fjords, and 2026 brought another dramatic example. In August, a huge iceberg separated from Petermann Glacier on Greenland’s […]
A Massive 29-Square-Mile Iceberg Hit an Island and Kept Going
A giant 29-square-mile iceberg broke from Greenland’s Petermann Glacier and survived a collision with Joe Island that might have shattered a more fragile berg. Summer is the busiest time of year for iceberg activity in Greenland’s glacier-fed fjords, and 2026 brought another dramatic example. In August, a huge iceberg separated from Petermann Glacier on Greenland’s […]
A Massive 29-Square-Mile Iceberg Hit an Island and Kept Going
A giant 29-square-mile iceberg broke from Greenland’s Petermann Glacier and survived a collision with Joe Island that might have shattered a more fragile berg. Summer is the busiest time of year for iceberg activity in Greenland’s glacier-fed fjords, and 2026 brought another dramatic example. In August, a huge iceberg separated from Petermann Glacier on Greenland’s […]
Nearly Destroyed DNA Reveals Two Extinct Giant Tortoise Lineages
Using a new computational toolkit, Yale researchers recovered evolutionary clues from highly degraded DNA and identified two extinct lineages of giant tortoises. Some Galapagos giant tortoise specimens preserved in museums contained so little usable DNA that less than 1% of their genomes could be read. Yet Yale researchers were still able to recover enough genetic […]