Evolution

EVOLUTION

Male or female? The mystery unfolds

Amazonian frog species has more sex chromosomes than any other vertebrate

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Genetics

Chinese researchers clone monkeys using the same technique that created Dolly the sheep

Zhong Zhong and Hua Hua, of the cynomolgus species, are genetically identical

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ENTOMOLOGY

Invisible moths

These very small Insects spend most of their lives as larvae inside stems and leaves

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Botany

Colonization via water

Group of carnivorous plants recognized for being aquatic species originated in Brazil, indicates phylogenetic study

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Biodiversity

The first global reptile map

An effort has mapped the global distribution of 10,064 reptile species

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Archaeology

Homo sapiens in the middle of South America

Site near Cuiabá indicates that humans were present there 27,000 years ago

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Ethology

Primate culture

Traditions dictate the use of tools among the monkeys of Piauí

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careers

Dr. Bone Collector

Orthopedist Herculano Alvarenga became a paleontology specialist

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Archaeology

Oldest Homo sapiens dating back 300,000 years found in Morocco

Oldest Homo sapiens dating back 300,000 years found in Morocco

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PALEONTOLOGY

Reptile controversy

Proposal alters the genealogical tree of dinosaurs and divides experts

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Paleontology

Reclassifying Dinosaurs

New proposal rearranges several dinosaurs on the family tree

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Evolution

A silent call

Brachycephalus froglets, from the Atlantic Forest, don't hear their own calls

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Zoology

A tree with unusual branches

Genetic analysis reveals unusual kinships between spiny rats

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Evolution

Why snakes don’t have legs

Missing sequence of 17 base-pairs meant snakes grew no legs

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BIODIVERSITY 

Appearances are deceiving

Integrated genetic and ecological studies reveal evolutionary processes

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PALEONTOLOGY

Heart of stone

New fossil record reveals an unforeseen pathway in the evolution of the heart

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ZOOLOGY

The voyages of sea turtles

Genetics help delineate populations of endangered species

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Biogeography

When the ocean was forest

The Atlantic Forest may have occupied the continental shelf in the Ice Age

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EVOLUTION

The richness of the highland grasslands

Vegetation in Brazil underscores the importance of a non-forest ecosystem

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Archeology

The unusual menu of the Paracas people

A population that lived more than 2,000 years ago ate a carbohydrate-rich diet

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Formicivora paludicola

Birds isolated by marshes

Birds are found near the sources of the Tietê and Paraíba do Sul Rivers

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ORNITHOLOGY

The origin of the seedeaters

Studies capture the process of a South American bird group emerged

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Science education

Clouded visions

Young Brazilians look to cultural and religious sources to explain evolution

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Homo naledi

Collective help

Paleontologists found fossil remains of a previously unknown hominid species

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Insects preserved

100 million years ago

Insects shows how plant fertilization occurred about 105 million years ago

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GENETICS

The controversial conquest of the Americas

Analysis suggests that indigenous in Brazil carry the DNA from Oceania

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Evolution

Theory under construction

Natural selection creates groups of traits that vary in unison

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Fossils

Primordial snakes

Described species add 70 million years to the evolutionary history of serpents

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Botany

Among the algae and lianas

Researchers study the processes of species diversification

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Zoology

Evolutionary history in progress

Studies aim to understand the processes of species diversification

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