Emami, 63, who headed the Persian Wildlife Heritage Foundation, was arrested along with seven colleagues on January 24.
His death was announced by the family on social media late last night.
"The news of my father's passing is impossible to fathom," wrote his son Ramin Seyed Emami, a well-known singer, on his Instagram page.
He said police had informed his mother on Friday.
"They say he committed suicide. I still can't believe this."
"The information published about him is not believable and we expect officials to respond and to provide the public with information concerning his death," the statement said.
A source close to the organisation told AFP that the other seven members of the Persian Wildlife Heritage Foundation were still in jail.
Tehran's chief prosecutor Abbas Jafari Dolatabadi had said on Saturday that several people had been arrested on espionage charges, without giving names.
"These people collected classified information in strategic sectors of the country in the name of scientific and environmental projects," he said, according to the judiciary- linked Mizan Online news agency.
"Everyone is in shock," an academic who knew Emami well told AFP on condition of anonymity.
"He was one of the best professors. He was very profound, very composed, not at all political. He loved Iran and the environment.
"He came back recently from Canada where he was doing research. On his return, he was called in several times" by the authorities.
Emami had taught at the Imam Sadegh University, where many of the regime's leading figures were educated including nuclear negotiator Said Jalili.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
