Fighting Covid-19 in Iran has been hard for doctors. The country has recorded more than 50,000 deaths and over a million cases from the virus, as doctors have had to make do with limited resources and equipment available under the renewed US sanctions and President Donald Trump’s maximum pressure campaign. CNN’s Nick Paton Walsh reports from a hospital in Iran’s capital, Tehran.
These tiny swirls on the sun could trigger solar flares 
Bullfrogs may have an antidote to deadly shellfish poisoning 
Is AI making us dumber? Maybe not. But our skills are at risk 
Emperor penguin chicks like these starved. An iceberg may be the cause 
Naked mole-rat queens rule their colonies with a potent odor 
‘Cheating’ birds change their tune 
Hiroshima fosters hope, 81 years on from nuclear catastrophe 
The Year of Pastoralists Must Be More Than Symbolic 
Rohingya Refugees Seeking Safe Haven in Bangladesh Hit by Fresh Disasters