Tag Archive for 'Tail'

An illustration showing what Yuanchuavis kompsosoura might have looked like in life. Image credit: Haozhen Zhang.

New Bird Species from Cretaceous Period Had Long Pintail

Sep 17, 2021 by News Staff

Paleontologists in China have identified a new species of pengornithid enantiornithine bird with a pair of elaborate tail feathers. An illustration showing...

Bonapartesaurus rionegrensis. Image credit: José Antonio Peñas, SINC.

Cretaceous Duck-Billed Dinosaur Had Foot and Tail Health Problems

Jul 21, 2021 by Enrico de Lazaro

The Cretaceous-period hadrosaurid dinosaur Bonapartesaurus rionegrensis had a foot tumor and two painful fractures in the vertebrae of its tail, according...

The skeleton of Trix. Image credit: Mike Bink.

Tyrannosaurus rex Walked Slower than Previously Thought

Apr 21, 2021 by News Staff

Animals display a variety of gaits and walking speeds. It is commonly assumed that they minimize locomotor energy expenditure by selecting gait kinematics...

Xu et al. present the first anatomical and histological evidence of tail repair with regrowth in an archosaur, the American alligator (Alligator mississippiensis); the regrown alligator tails constituted approximately 6-18% of the total body length and were morphologically distinct from original tail segments. Image credit: Norbert Nagel / CC BY-SA 3.0.

Young American Alligators Can Regrow Their Tails, Study Shows

Nov 24, 2020 by News Staff

Young American alligators (Alligator mississippiensis) have the ability to regrow their tails up to 18% of their total body length, according to a study...

This image from the WISPR instrument on board NASA’s Parker Solar Probe shows comet C/2020 F3 (NEOWISE) on July 5, 2020, shortly after its closest approach to the Sun. Image credit: NASA / Johns Hopkins APL / Naval Research Lab / Parker Solar Probe / Brendan Gallagher.

Parker Solar Probe Sees Comet NEOWISE’s Twin Tails

Jul 10, 2020 by News Staff

NASA’s Parker Solar Probe has captured unique images of comet C/2020 F3 (NEOWISE) and its two tails. This image from the WISPR instrument on board NASA’s...

Two Spinosaurus aegyptiacus hunt Onchopristis, a prehistoric sawfish, in the waters of the Kem Kem river system in what is now Morocco. Image credit: Jason Treat / National Geographic Staff / Mesa Schumacher / Davide Bonadonna / Nizar Ibrahim, University of Detroit Mercy.

Spinosaurus aegyptiacus is First Known Aquatic Dinosaur

Apr 30, 2020 by News Staff

A species of carnivorous dinosaur called Spinosaurus aegyptiacus used tail-propelled swimming locomotion to hunt for prey in rivers, according to a new...