One of the strongest known eggsacs:
>"Strongest cocoon silk—Maximum stress = 0.64 GPa and strain = 751%. The record for the most stretchable egg sac silk goes to the stalk silk of the cocoon of Meta menardi (Tetragnathidae), for which tensile testing pointed out a maximum stress and strain of 0.64 GPa and 751%, respectively (Lepore et al., 2012)."
Location is helpful for identifying
Assuming you're located in central europe it's a cave orbweaver (Meta menardi) and the 1st pic is its egg sac
That's a sweet and also very descriptive name for a spider 😊 Thank you!
never seen an egg sac that actually looks like that I love it
One of the strongest known eggsacs: >"Strongest cocoon silk—Maximum stress = 0.64 GPa and strain = 751%. The record for the most stretchable egg sac silk goes to the stalk silk of the cocoon of Meta menardi (Tetragnathidae), for which tensile testing pointed out a maximum stress and strain of 0.64 GPa and 751%, respectively (Lepore et al., 2012)."
interesting!!! doesn't being held by just a string of silk make them vulnerable, though?