Attaching shark teeth to saw blades shows why they are shaped differently

A study sought to understand why shark teeth are shaped differently and what biological advantages various shapes have by testing their performance under realistic conditions. The researchers from the University of Washington attached different shark teeth to a saw and attempted to cut through a hunk of salmon at the same speed a shark would devour its prey. Sep 9, 2016

Theresa May: A running commentary on EU talks would not be right

UK Prime Minister Theresa May ruled out giving a running commentary on Brexit negotiations with the EU, she told MPs at Prime Minsters Questions on 7 September. The Prime Minster was assertive on the stance after Brexit Secretary David Davis suggested the UK staying in the single market was improbable. Downing Street was quick to state Davis had been making a personal view rather than a government statement. Sep 7, 2016