Gonna lore dump on my interpretation of the Tripods here.

Tripod biology: Tripods are an Arthropod-like species denoted by their exoskeletons being of an unknown high-entropy chitin metal composite, Tripods have spiracles (nostrils) & a mouth located underneath their "hood". Tripods height wise are on average between 10 feet tall to 45 feet tall, though some mutations can cause a Tripod to be hundreds of feet tall, their average weight is usually between 2000lbs-8000lbs.

They seem to incorporate a form of reverse biomimicry, they seem to most often use it to emulate the appearance of a watertower in their sleep.

Tripods have an organ that is able to emit concentrated microwaves & infrared light, it is often located on the "palm" one or both retractable arms.

Most Tripods seem to have something known as Gathering spawn, small squat pentapidal miniature versions of the Tripod. It is unknown if Gathering spawn are Tripod offspring or some other species that formed a symbiotic relationship with the Tripods, or possibly even some sort of drone.

Currently no Tripod offspring have ever been observed, though it's assumed that Tripods Reproduce Asexually via Parthenogenesis.

Tripods seem to have an intelligence roughly on par with humans, while in groups they tend to communicate to one another via their own language, but are capable of learning human languages.

Tripods seem to have a mostly neutral opinion on humans, though they can & will get violent towards humans if provoked (Warning, it is really easy to set off a Tripod so avoid direct contact at all costs). It is assumed that the Tripods came from Mars due to them first appearing several months after some strange visual phenomena appeared on Mars in 1901, their arrival via cylindrical capsules coincided with the time needed for such craft to get from Mars to Earth.