I found and captured this large spider in our living room while it was going after our Golden Retriever in Welland, Ontario, Canada. We have 2 dogs and 2 cats. Do you think there are more and they could have made a nest in our home? Our backdoor is often left open for the dogs with the use of a Magic Mesh and we are new to this area, we moved into our home 2 months ago. I did my best to take a good photo but there was alot of glare from the tupperware container I put it in. I am worried that it definitely could have bitten one of our dogs! It is mostly dark in color with a light stripe lengthwise down it's head and approx 4cms in length. It has, on top of it's 8 legs, 2 additional shorter things that look like legs reaching out from either side of its head (I can't call them antenna as they aren't coming from the top of it's head). Fall, October 2nd, warm, 21 degrees Celcius.
Thank you so much for your time! I just want to make sure that my pets are safe.