Shot by Paul Nicklen and Cristina Mittermeier of the nonprofit group Sea Legacy, and published on National Geographic in early December, the video ignited a firestorm of debate about what ...

Juvenile I (Figure 2b) Foregut more complex compared to previous stages; showing some unclearly distinct ossicles; total length about 0.32 mm. Cardiac chamber: Bent and narrow, with gutters in the ...