Star Thrower Educational Multimedia (S.T.E.M.) Dive Dry Column
— Read on starthrower.org/products/DDDB/DDDB_850-899/DDDB_872 leopard sharks.htm

return to the list of ALL of Dr. Bill’s “Dive Dry” newspaper columns, click here.

— Read on starthrower.org/products/DDDB/DDDB_850-899/DDDB_855 shark in park.htm

Round stingrays are sexually mature at about 10 inches. During June the females move inshore from deeper water to mate with the males. After mating they return to depth, but are found back in the protected shallows in August and September when they spawn. Males are generally found in shallower water much of the year except winter when storms appear. The four inch young are born in litters averaging three but may have as many as eight according to Dr. Milton Love of the Love Lab at UCSB. They remain in very shallow water, less than 12 feet, until they reach 6-7 inches, then move into deeper water along more exposed coastlines. It is unlikely that bathers will encounter these rays in our waters during winter…
— Read on starthrower.org/products/DDDB/DDDB_350-399/DDDB_358 round stingray.htm

Star Thrower Educational Multimedia (S.T.E.M.) Dive Dry Column
— Read on starthrower.org/products/DDDB/DDDB_100-149/DDDB_127 round stingray.htm

Part 2, Natural history of brown stingray, part two —males do not have tails!?

The waters surrounding Seal Island in False Bay, South Africa, are known for great white sharks breaching out the water in pursuit of seals (left image), but the recent disappearance of great whites from here has led to the emergence of another apex predator, sevengill sharks that now dominate the area.

Link: https://news.miami.edu/rsmas/stories/2019/02/new-study-finds-ecosystem-changes-following-loss-of-great-white-sharks.html

— Read on sevengillsharksightings.org/new-paper-sevengill-sharks-replacing-great-whites-as-apex-predator-in-cape-town-area/

Star Thrower Educational Multimedia (S.T.E.M.) Dive Dry Column
— Read on starthrower.org/products/DDDB/DDDB_750-799/DDDB_771 sevengill sharks.htm