![](/uploads/post/key_image/7646/landscape_262a32e89bdc5b12e0e39781326d4307_640x346.jpg)
This Week's Most Popular Articles in the Longform App
<img src="http://longform.org/stuff/images/seven-month-old-twins-615.jpg" title=“babies and babies" class="bleed" alt=“”>The rise and murderous fall of a pecan dynasty in Texas, the inside story of how Marissa Mayer lost her way at Yahoo! and why a baby’s brain needs love to develop — the most read articles this week in the Longform App, available free for iPhone and iPad.