
Cybernetic tortoise, developed to help with studies on brain function
1950-1952
1950-1952
1949
1949
1948-1950
1948
1948
1947
1947
1948
1950
1950
1951
1949
1951
1951
1951
1955; 1830
circa 1950
1950
1951
1952
1952
1952
1952
1951
1951
1938 and 1951
1950
2000-100 BCE
1950-1951
circa 1950
1948
1948
1949
1950
1949
1903 (original); 1982 (model)
1951
1948
1951
1951
1990-96
1948
1830 (original); 1967 (model)
1952-3
circa 1950
circa 1950
1949
1947
1950