This glass frog wears its heart for all to see
Other visible organs of the new species include the kidneys and urine bladder
![Hyalinobatrachium yaku glass frog](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/06/060817_CM_glass-frog_main.jpg?fit=860%2C460&ssl=1)
NOTHING TO HIDE A newly discovered glass frog (Hyalinobatrachium yaku, shown) has skin so transparent that its beating heart is visible.
J.M Guayasamin et al/ZooKeys 2017