Siden 1970'erne har forskerne været

Siden 1970'erne har forskerne været i gang med at finde ud af om dyr, ligesom mennesker, har "selvbevidsthed

Resultater (Engelsk) 1:

Since the 1970s, scientists have been in the process of finding out about animals, like humans, have "self awareness

Resultater (Engelsk) 2:

Since the 1970s, scientists have been working to find out about animals, like humans, have "self-awareness