Flora and fauna (= plants and animals) Fauna

offspring
(plural offspring)
(formal or humorous)
 
a child of a particular person or couple

• 
  the problems parents have with their teenage offspring
  
• 
  to produce/raise offspring
  

beyond
on or to the further side of something

• 
  The road continues beyond the village up into the hills.
  

merely
​used meaning ‘only’ or ‘simply’ to emphasize a fact or something that you are saying

• 
  It is not merely a job, but a way of life.
  
• 
  He said nothing, merely smiled and watched her.
  
• 
  They agreed to go merely because they were getting paid for it.
  
• 
  I'm merely stating what everybody knows anyway.
  

incident

something that happens, especially something unusual or unpleasant

• 
  His bad behaviour was just an isolated incident.
  
• 
  The most recent incident occurred last January.
  
• 
  She couldn't have been more than five years old when the incident happened.
  
• 
  One particular incident sticks in my mind.
  
• 
  incident with somebody/something The hot-headed tennis star became involved in an incident with the umpire.
  

skull
the bone structure that forms the head and surrounds and protects the brain

• 
  a fractured skull
  
• 
  the angel of death with his grinning skull
  

demise

​the end or failure of an institution, an idea, a company, etc.

1. 
   He praised the union's aims but predicted its early demise.
   
2. 
   the demise of the USSR
   
3. 
   The war brought about the industry's sudden demise.
   
4. 
   the events which contributed to his political demise