Biomechanical limits of hopping in the hindlimbs of giant extinct kangaroos
Specimens All species included in this study were macropodiforms; the bone measurement dataset encompassed all extant families and…
Rare cheetah mummies found in Saudi caves
NEW YORK (AP) — Scientists have uncovered the mummified remains of cheetahs from caves in northern Saudi Arabia.…
Five rules for scientifically credible nature markets
UNEP. State of Finance for Nature 2023 (UNEP, 2023). Kedward, K., zu Ermgassen, S. O. S. E., Ryan-Collins,…
Deep conservation of cis-regulatory elements and chromatin organization in echinoderms uncover ancestral regulatory features of animal genomes
Sebé-Pedrós, A. et al. The dynamic regulatory genome of capsaspora and the origin of animal multicellularity. Cell 165,…
Jellyfish sleep like humans — even though they don’t have brains
The upside-down jellyfish Cassiopea andromeda sleeps for roughly 8 hours a day.Credit: Shahar Shabtai/Alamy Neither jellyfish nor sea…
Some animals have evolved extreme ways to sleep in precarious environments
Every animal with a brain needs sleep — and even a few without a brain do, too. Humans…
Caribbean islet blossoms into love nest for critically endangered iguana
SAN JUAN, Puerto Rico (AP) — Silence used to prevail in the forest of a private Caribbean islet…
The first black bear hunt in a decade has begun in Florida, despite pushback from critics
TALLAHASSEE, Fla. (AP) — For the first time in a decade, hunters armed with rifles and crossbows are…
Florida kicks off first black bear hunt in a decade, despite pushback
TALLAHASSEE, Fla. — For the first time in a decade, hunters armed with rifles and crossbows are fanning…
New jaguar sighting in US confirmed by Arizona researchers
The spots gave it away. Just like a human fingerprint, the rosette pattern on each jaguar is unique…
New jaguar spotted in Arizona points to progress in endangered species’ recovery
The spots gave it away. Just like a human fingerprint, the rosette pattern on each jaguar is unique…
How a sperm bank might save cheetahs from extinction
CAPE TOWN, South Africa (AP) — For 35 years, American zoologist Laurie Marker has been collecting and storing…