The answer depends on what you want tell it apart from!
it depends what you are telling apart
Meerkats tell each other apart with smell and dominant
Depends what "them" is
As humans we have a hard time telling penguins apart. However, They can tell each other apart by distinct vocalizations.
For the average human viewer there appears to be little way to tell a Pill Bug apart but they do have markings on there backs which can allow them to be told apart.
I can tell them apart by their hairstyle and attitudes (including their music). Maybe you should try the same.
You can tell it apart by Eating the burger and licking the rockdifferent taste s LIKEa BOSS
Firstly, does the dog look like a Dobermann - pay attention to the head and body shape. Secondly, does it have Kennel Club registration papers. If the dog does then it is most certainly a purebred.
I can not tell you what German Suess means. German Suess can not be translated to English
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Contact the German embassy or consulate. Explain your situation and they will tell you whether you have lost your German citizenship or not and will tell you if you can regain it.