Ancient sharks likely more diverse than previously thought

Ancient sharks likely more diverse than previously thought 385-million-year-old specimen may have fed on particles, not prey More at https://www.nsf.gov/discoveries/disc_summ.jsp?cntn_id=244191&WT.mc_id=USNSF_1 This is an NSF Discoveries item. Save Follow NSF:    Save This email was sent using GovDelivery Communications Cloud on behalf of: National Science Foundation Update · 2415 Eisenhower Avenue, Alexandria, VA 22314 · 703-292-5111