Something unexpected has arrived in Happy Meal.

Teenage Mutant Ninja Turtles and Hello Kitty and friends are teaming up for the Ultimate Collab.

Joining your little ones on a fun-fueled adventure.

Some fun, some food, it's all inside this Happy Meal.

Until the 2nd of February, from 11am includes one pre-selected book or toy, whilst that's last. American science quickly. I'm Kendra Pira Lewis, in for Rachel Fulman.

It's been more than 500 years since Leonardo Dithynchi died. Yet in those intervening centuries, interest in the Italian polymath, who seemingly moved with ease between art,

architecture and engineering, among other fields, has only grown.

So is interest in his DNA.

About 10 years ago, researchers across a wide range of disciplines, from forensic science and genetics to art history,

got together with the goal of finding the Renaissance artist's DNA.

Da Vinci had no children, and his remains were disturbed during

the French Revolution. The hope is that uncovering his DNA could open the door to a number of

discoveries, including new tools for authenticating artwork and potential clues about Da Vinci's

uncanny way of seeing the world. Now a new pre-print, meaning it has not yet been peer-reviewed,

reveals that the team has found male DNA on a chalk drawing called Holy Child that's often attributed to the master.

The researchers say it's possible the genetic evidence comes from Da Vinci himself, though

not all researchers agree.

To learn more about this paper and the project overall, we talked with forensic legend Ronda

Robe. In addition to being

part of the Leonardo da Vinci DNA project, Rhonda is known for her work using DNA analysis to identify

remains of people killed during 9-11 and the 1973 Chilean coup by Pinochet. She was also part of the

team that identified the remains of Tsariglis II, along with other members

...