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Washington, Nov 7 - A new research has observed that a new virus called canine distemper virus (CDV) is proving to be a threat to the tiger populations in the wild.

According to a new study from the Wildlife Conservation Society (WCS) and its partners, CDV has the potential to be a significant driver in pushing the animals toward extinction.

The authors evaluated these impacts on the Amur tiger population in Russi's Sikhote-Alin Biosphere Zapovednik (SABZ), where tiger numbers declined from 38 individuals to 9 in the years 2007 to 2012. In 2009 and

London, Nov 07 - Mobile messaging service WhatsApp has reportedly come up with a new " double blue tick" feature that allows users to know when their texts have been delivered and read.

The blue tick appears as soon as the person at the receiving end has read the message.

According to Daily Express, one grey tick means a message has been successfully sent, two grey ticks show it has been delivered and a blue tick means the message has been read.

The app now also shows the exact time a text was sent. Users need to press and hold down on a particular post to know the accurate time the message was sent to them.

London, Nov 07 - United States President Barack Obama has reportedly sent a "secret letter" to Iran's Supreme Leader Ayatollah Ali Khamenei describing a shared interest in combating the Islamic State ( IS).

According to the BBC, Obama stressed that any co-operation in taking on the terror group is dependent on Iran reaching a nuclear agreement by November 24 diplomatic deadline.

The letter was sent last month and is at least the fourth letter written by Obama to Khamenei after he assumed office in 2009.

U.S. Secretary of State John Kerry is scheduled to begin negotiations on the issue with Iranian counterpart Javad Zarif this weekend in Oman.

London, Nov 7 - British comedian Stephen Fry has quit his Twitter account for a month due to safe

London, Nov 07 - American retail store Home Depot has reportedly said that hackers who stole 56 million debit and credit card details earlier have also stolen 53 million email addresses.

However, it added on Thursday that the file containing the e-mail addresses did not contain any sensitive data like passwords or other personal information, reported the BBC.

Home Depot said that the hackers accessed its network using a vendor's username and password between April and September. Advising customers to be on guard, it warned them against further phishing scams that might trick them into sharing personal information.

London, Nov 7 - Former Manchester City star Denis Law has said the club needs to battle harder in Eur