Fish need to cross roads too. But the tunnels built to channel rivers under roads and railways can block their migrations.
Government should be held accountable for its role in addressing obesity and diet-related diseases, such as type 2 diabetes, in South Africa.
The food industry's tactics are designed to reduce the likelihood of the government adopting global recommendations to tackle obesity.
A public debate recently erupted among global taxonomists. Strongly-worded ripostes were exchanged. A comparison to Stalin was floated. But eventually, they worked it out.
Pangolins have been found with covonaviruses that are genetically similar to the one afflicting humans today.
Jekesai Njikizana/AFP/Getty Images
Yellow fever, malaria and Ebola all spilled over from animals to humans at the edges of tropical forests. The new coronavirus is the latest zoonosis.
An Amazonian man surveys the swollen river.
Local people are caught in an impossible situation – stay home and starve or venture out to buy food, potentially bringing the virus home too.
Out and about: Jair Bolsanaro waves to supporters during a rally in Brasilia on April 19.
Jair Bolsonaro has ignored and openly challenged the advice of health authorities, sacked his health minister and tried to use the pandemic for political gain.
Un agriculteur brésilien applaudit pendant un rassemblement du Mouvement des sans terre, le 1er juin 2003.
Antonio Scorza / AFP
Alors que se dessinent les contours de la nouvelle PAC, retour sur la réforme agraire brésilienne, aujourd’hui paralysée par le gouvernement de Bolsonaro.
Through the wonders of chemistry, molecules can be rearranged to completely transform color.
Erick Leite Bastos
A simple chemical reaction turns the red pigment of beets into a new, nontoxic blue dye.
Sifilis dapat menyebabkan kaburnya pengelihatan dan kasus ini sedang marak terjadi.
Sebagai dokter mata, kami melihat ada peningkatan dalam masalah penglihatan yang disebabkan oleh sifilis. Menerapkan seks aman juga penting untuk kesehatan mata kita.
The aftermath of the dam burst in Brumadinho.
The tailing dam collapse at the Brumadinho mine has shocked the world, but can we really be sure that 'never again' truly means never again?
Padaungiella lageniformis wiggles its pseudopods.
Daniel J. G. Lahr
Using the family relationships between single-celled protists alive today, researchers hypothesized what their evolutionary ancestors looked like – and then looked in the fossil record for matches.
Scorpions used to be a rural problem in Brazil. Now, residents of São Paulo and other urban areas are dealing with an infestation of these venomous creatures.
AP Photo/Alexandre Meneghini
Brazil's scorpion infestation, which is terrorizing residents of São Paulo and other major cities, is a classic 'wicked problem.' That means officials must think outside-the-box to fix it.
Brazilians are more divided than ever.
Data scientists mapped the online behavior of Facebook users in Brazil, the US and Argentina. The result is a startling visual portrayal of just how deeply polarized these nations have become.
For Brazilian citizens, it sometimes feels like the whole country is on fire right now.
Things keep getting worse for South America's most populous nation and biggest economy. What is going on, Brazil?
The Minha Casa Minha Vida programme has built millions of affordable units, but Brazil’s poorest still struggle to find adequate housing.
Brazil should ask itself which is more important: having a roof over your head or owning the roof over your head?
Ayahuasca has been used for spiritual and therapeutic purposes by indigenous healers in Brazil’s northwestern Acre state for centuries.
Western science is "discovering" the medical potential of ayahuasca, which Amazonian indigenous groups have used ritualistically for centuries.
Child stunting in Brazil was decreased by insisting that mothers visit healthcare centres.
There are several lessons that the world can learn from Brazil about how to rapidly reduce child stunting in 10 years.
Des touristes nagent parmi les poissons dans les eaux chaudes de la rivière Cuiaba (État du Mato Grosso) au Brésil.
Profiter de ses vacances pour être au plus près de la nature en explorant des aires protégées ?
Pourquoi pas, mais en tenant compte d'éventuelles conséquences insidieuses sur la faune locale.
While ecotourists enjoy the warm waters of the Cuiaba River in Brazil, our presence in natural areas like this may have unanticipated costs for local wildlife.
We often think of ecotourism as good for the environment. But it may have some worrying unintended consequences for wild animals.
The writing’s on the wall.
EPA/Fernando Bizerra Jr
Dilma Rousseff's administration has done little to improve the representation of women in top positions – and has suffered disappointing setbacks.