Zoology

Biodiversity

The (almost) inaudible song of a hummingbird

The black jacobin hummingbird's song is inaudible to other bird species By

EVOLUTION

Male or female? The mystery unfolds

Amazonian frog species has more sex chromosomes than any other vertebrate By

ECOLOGY

The gears of the forest

The loss of more than 60% of native vegetation within a region leads to profound changes in how it operates By

ZOOLOGY

Solitary sand spiders

Isolated Sicarius populations inhabit Brazil’s Caatinga (semi-arid scrublands) and desert areas of Argentina, Peru and Chile By

ENTOMOLOGY

Invisible moths

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

CHRONOBIOLOGY

A clock that works in the dark

Researchers come together to reveal the circadian rhythms of tuco-tucos By

paleontology

Fossils on the move

3D reconstructions highlight new characteristics of dinosaurs By

PALEOBIOLOGY

More than met the eye

Fossilized burrows suggest complex organisms arose before the Cambrian By

BIOLOGY

The chemical language of insects

Bees and ants recognize each other through compounds that cover their bodies By

Biodiversity

The first global reptile map

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

Biodiversity

Nearly 400 new species are discovered in the Amazon

Nearly 400 new species are discovered in the Amazon By

Photolab

At the bottom of the Amazon

At the bottom of the Amazon By

Ecology

Deep sea alliances

Cleaner fish obtain food by removing parasites from larger fish By

Biodiversity

Tambaqui stocks in decline

The average size of the tambaqui has halved and it is less frequently caught By

Photolab

Tracked in movement

Tracked in movement By

Biodiversity

Pesticide may affect bees

Insecticides that coat commercial seeds are affecting bee populations By

photolab

The comforts of home

The comforts of home By

Zoology

Genetics explains color of seedeater plumage and atrophied wings of cormorants

Genetics explains color of seedeater plumage and atrophied wings of cormorants By

BIOLOGY

Creatures of the urban night

Nearly half of the bat species in Brazil live in cities By

ECOLOGY

In the stone jungle

Inventory finds unexpected species diversity in the São Paulo capital By

biodiversity

Tiny spiders have different mechanisms for recognizing colors

Tiny spiders have different mechanisms for recognizing colors By

Chronobiology

Chronobiology: rhythms and cycles

Physics, biology and technology unite to unravel a rodent's circadian rhytms By

Paleontology

Animals of Paraná

Fossils indicate the existence of fauna that lived 40 million years ago By

Zoology

Spines filled with poison

Gland at the end of hairs produces toxic secretion in stinging caterpillars By

Evolution

A silent call

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

Careers

Hands soiled with oil

Company specializes in rescuing and rehabilitating fauna affected by oil spills By

Zoology

Retroactive epidemiology

Study of tadpoles preserved identifies fungus responsible for die-off By

Ethology

How capuchin monkeys break open cashew nuts

Capuchin monkeys have special technique to break open cashew nuts By

Photolab

Communal zoology

Community zoology By

Zoology

A tree with unusual branches

Genetic analysis reveals unusual kinships between spiny rats By