The RSPCA in Swansea says it is seeing an increase in the number of abandoned cats and kittens it's taking in.
Staff there described this year as the 'worst ever' for the problem and said they're struggling to cope.
The problem stems from cat owners being caught out when their un-neutered pets have litters.
Now the society is working with Cardiff University to try to establish why owners aren't taking preventative measures.
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A petition will be handed in at the Senedd later calling for rules to prevent the use by under 13's in care of social media sites.
Technology projects that promote the Welsh language are to get over £250,000 of funding to help encourage more use of in digital media.
A chilly start to the day is expected but prolonged spells of sunshine will allow the temperatures to respond, highs of between 14 - 17 °C