function ReadTXTInfo: String;
var
  Ch: Char;
  FS: TFileStream;
begin
  Result := '';
  FS := TFileStream.Create('animals.txt', fmOpenRead);
  try
    while FS.Read(Ch, 1) = 1 do 
      Write(Ch);
    Writeln;
  finally
    FS.DisposeOf;
  end;
end;