SAO PAULO — Brazil’s government said on Friday it would issue temporary humanitarian visas and residency permits for Ukrainian nationals and other individuals who have been affected or displaced by the conflict with Russia.

The visas will be valid for 180 days, and arriving Ukrainians can apply for residency permits lasting two years, according to the text published in the nation’s official gazette.

Brazil will require, among other documents, a certificate attesting to the person’s clean criminal record.

Brazilian media have reported that the country has Latin America’s biggest population of Ukrainians and their descendants, ranging between 500,000 and 600,000, according to an estimate from Ukraine’s embassy.

The administration of President Jair Bolsonaro has been ambivalent about the conflict.

Bolsonaro himself expressed solidarity with his Russian counterpart Vladimir Putin on a recent visit and has said Brazil will retain a neutral stance in the conflict.

At the same time, Brazil voted to condemn the invasion in the meeting of the United Nations Security Council.

Since Russia invaded Ukraine, more than 1 million refugees have fled the violence and crossed into neighboring countries.

According to the United Nations refugee agency, 649,000 people have fled to Poland, 144,000 to Hungary, 103,000 to Moldova, 90,000 to Slovakia, and 57,000 to Romania.

In the U.S., the Biden administration said Ukrainians who are already in the states would remain in the country under a form of humanitarian relief.

Earlier this week, Airbnb said it would provide temporary, accessible housing for up to 100,000 Ukrainian refugees fleeing the country.

Researchers in Hungary say they've found that dogs can recognize their owners by their voice alone.

The dogs' owners were invited in on the study and were able to record their voices and use their voices in various parts of the study. The dogs had to choose from a distance and had to look for their owner who was hiding. The game lasted multiple rounds and the owner's voice was mixed in with the voices of 14 different strangers.

The study, done at Budapest's Eötvös Loránd University, found that after looking at 28 dogs, they determined that the animals were able to find their owner in 82% of cases.

A senior researcher at the Department of Ethology at Eötvös Loránd University told CNN, "Probably in a lot of cases dogs have to switch on their nose to find things and they don't just use it routinely all the time."

In the study it said, "Humans are highly skilled in extracting identity information from speech from an early age."

The study found that dogs have a high ability to recognize aspects of voice in humans, like pitch.

Tamás Faragó, a senior researcher at the Department of Ethology for the university said, "Of course, usually, the dogs meet in person with humans so that they can differentiate us by our looks, and also the smell, and they use all these things, but there are more and more research and technology going into this direction."