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Posts by
Shireen Gonzaga
Delta Cephei helps measure cosmic distances
Delta Cephei is an inconspicuous variable star in the northern constellation Cepheus the King. This important star helped establish the cosmic distance scale.
September 24, 2024
Human World
Did humans drive Cyprus dwarf hippos and elephants extinct?
A new study shows that now-extinct dwarf hippos and elephants on the island of Cyprus were likely driven to extinction by humans about 14,000 years ago.
September 22, 2024
Human World
Did social isolation drive Neanderthals to extinction?
New DNA studies of a Neanderthal from France support a theory that Neanderthals became extinct because their populations were isolated, leading to inbreeding.
September 18, 2024
Earth
New dinosaur – a long-necked titanosaur – uncovered in Spain
A new species of titanosaur, a large plant-eating dinosaur with a long neck, was discovered near Cuenca, Spain. It lived 73 million years ago.
September 12, 2024
Earth
Ancient sea cow was attacked by a crocodile and sharks
The fossil remains of a sea cow from the Miocene Period reveal bite marks that suggest it was attacked by a crocodile and subsequently scavenged by sharks.
September 4, 2024
Earth
Humpback whales manufacture and wield tools
Humpback whales create and manipulate bubble nets as tools. Alone and in groups, the whales use the nets to encircle prey and maximize their catch.
August 28, 2024
Earth
Female sharks gather under sea to … sleep?
Using a remotely operated vehicle, scientists recently observed thousands of Port Jackson sharks, all female, sleeping on the seafloor off south Australia.
August 22, 2024
Earth
Hobbit human ancestors smaller than thought
Ancestors of Homo floresiensis, the "Hobbit" humans, that once lived on the Indonesian island of Flores, were smaller than scientists had previously thought.
August 14, 2024
Earth
Evolution of penguins’ wings revealed in new fossils
A penguin fossil from 24 million years ago in New Zealand has shed new light on the evolution of penguins' wings. Read about he key fossil.
August 7, 2024
Earth
Komodo dragons have iron-coated teeth
Scientists have discovered that the curved serrated teeth of Komodo dragons are kept sharp by a coating of iron, and have an orange stain from the iron.
August 1, 2024
