This text is missing some spaces, please add them: ThereareTWObiologicaldifferencesweneedtounderstand.
There are TWO biological differences we need to understand.

This text is missing some spaces, please add them: Accordingtotheastronomers,icebergsnormallyremaininplaceandcannotresumemovingsouthwarduntilthey'vemeltedenoughtorefloatorahighenoughtidefreesthem.
According to the astronomers, icebergs normally remain in place and cannot resume moving southward until they've melted enough to refloat or a high enough tide frees them.

This text is missing some spaces, please add them: Forthisbookanewversionofthefourmusicianswereproduced(pictureontheright).
For this book a new version of the four musicians were produced (picture on the right).