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.
Jonathan Sacks was born on March 8, 1948.
Harvey Sacks was born on 1935-07-19.
Greg Sacks was born on 1952-11-03.
Ruth Sacks was born on 1977-09-27.
David O. Sacks was born in 1972.
Peter M. Sacks was born in 1950.
Lisette Rene Sacks was born in 1972.
Nathan Sacks was born on 1959-06-16.