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Early Birds

China fossil shows bird, crocodile family trees split earlier than thought

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1000pa (May 19, 2011) — A fossil unearthed in China in the 1970s of a creature that died about 247 million years ago, originally thought to be a distant relative of both birds and crocodiles, turns out to have come from the crocodile family tree after it had already split from the bird family tree, according to research led by a University of Washington paleontologist.

The only known specimen of Xilousuchus sapingensis has been reexamined...

1000pa (May 19, 2011) — A fossil unearthed in China in the 1970s of a creature that died about 247 million years ago, originally thought to be a distant relative of both birds and crocodiles, turns out to have come from the crocodile family tree after it had already split from the bird family...

Insects' exuberant helmet is actually an extra set of wings, researchers show

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1000pa (May 8, 2011) — In 250 million years of insect evolution, the appearance of new wings is unprecedented. Transformations and losses of wings, yes, but additions, never. A team from the Institut de Biologie du Développement de Marseille-Luminy (CNRS/Université Aix-Marseille 2) has shattered this belief by providing proof that the exuberant helmet of Membracidae, a group of insects related to cicadas, is in fact a third pair of pr...

1000pa (May 8, 2011) — In 250 million years of...

Chilly times for Chinese dinosaurs: Abundance of feathered dinosaurs during temperate climate with harsh winters

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1000pa (Mar. 13, 2011) — Dinosaurs did not always enjoy mild climates. New findings show that during part of the Early Cretaceous, north-east China had a temperate climate with harsh winters. They explain the abundance of feathered dinosaurs in fossil deposits of that period.

The discovery was made by an international collaboration coordinated by Romain Amiot of the Laboratoire de géologie de Lyon: terre, planètes et environnement (CNRS/ENS...

1000pa (Mar. 13, 2011) — Dinosaurs did not...

Evolution drives many plants and animals to be bigger, faster

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1000pa (Mar. 9, 2011) — For the vast majority of plants and animals, the 'bigger is better' view of evolution may not be far off the mark, says a new broad-scale study of natural selection. Organisms with bigger bodies or faster growth rates tend to live longer, mate more and produce more offspring, whether they are deer or damselflies, the authors report.

Researchers working at the National Evolutionary Synthesis Center compiled and...

1000pa (Mar. 9, 2011) — For the vast majority of...

Hormones dictate breeding success in birds

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1000pa (Jan. 26, 2011) — Max Planck and Princeton University researchers can predict the number of offspring a bird will have based on its prolactin and corticosterone levels.

Some animals produce more offspring than others. Hormones like prolactin and corticosterone can exercise a crucial influence on the behaviour of birds in the breeding season and therefore on their reproductive success. Scientists from the Max Planck Institute for...

1000pa (Jan. 26, 2011) — Max Planck and Princeton...

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unexplained artifacts
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Evolution

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The 10 Biggest Dinosaurs

Fossils 

Fossil Formation: How Do Fossils Form?
 

Book review

Dinosaurs Encyclopedia

Book Review

Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages ... WRITTEN BY A PROFESSIONAL paleontologist specifically for young readers, this guide to the Dinosauria is packed...