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What types of spider and caterpillar are these, and what are they doing?

The spider is a cobweb weaver - family Therididae (can be determined from the bulbous abdomen, thinness of legs and small cephalothorax) and appears to be Steatoda triangulosa from the brownish colour,...
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4 votes

What types of spider and caterpillar are these, and what are they doing?

Spiders pump digestive enzymes into the prey to externally digest it then drink it, whereas you ingest your prey and the digestion is done internally. That's not even the only way animals eat......
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1 vote

Do cochineals ("scale bugs") form aluminium complexes themselves? Where do they get such large quantities so quickly and how do they handle it safely?

Aluminium moves within plants as a complex with ligands such as Oxalate, Malate, and Citrate. Plant cells also hide the aluminium (and other junk) in vacuoles. That is most likely the immediate source ...
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