Add spaces: ShowfamilytreestartingwithHenrikHansen

Answer: Show family tree starting with Henrik Hansen

Add spaces: TheestablishmentoffirstfeedingandfeedingculturesoflarvaewillbemajorbreakthroughsinEuropeaneelresearchandanimportantandpromisingsteptowardsaself-sustainedaquacultureoftheEuropeaneel.

Answer: The establishment of first feeding and feeding cultures of larvae will be major breakthroughs in European eel research and an important and promising step towards a self-sustained aquaculture of the European eel.

Add spaces: Evensmallstonescancauseseverepain.Thekidneysaretwobean-shapedorgans,approximately12cm.long,6cm.wide,and3cm.thicklocatedatthebackoftheabdomenoneachsideofthespinalcordnexttotheupperlumbarvertebrae.

Answer:
Even small stones can cause severe pain. The kidneys are two bean-shaped organs, approximately 12 cm. long, 6 cm. wide, and 3 cm. thick located at the back of the abdomen on each side of the spinal cord next to the upper lumbar vertebrae.