They are inside a sack of fluid in their mother before they are born,as in humans this sack of fluid protects the unborn pup from jolts and knocks from the outside world.
Mark Sacks was born in 1953.
Gerald Sacks was born in 1933.
Alan Sacks was born in 1943.
Oliver Sacks was born on July 9, 1933.
Harvey Sacks was born on 1935-07-19.
Jonathan Sacks was born on March 8, 1948.
Greg Sacks was born on 1952-11-03.
Lisette Rene Sacks was born in 1972.
Nathan Sacks was born on 1959-06-16.
David O. Sacks was born in 1972.
Ruth Sacks was born on 1977-09-27.
Peter M. Sacks was born in 1950.