The thing that jumped onto No. 2 Division's escape vessel was a strange terraformar with strangely developed legs. It then takes the controls and tries to fly off with the escape vessel while everyone is still aboard. Yaeko and the others prepare for the worst as they're trying to figure out why it knows how to fly the vessel.
Its legs look like brushes, 
making it easier for him to swim.
Diese bürstenartigen Beine
erleichtern ihm das Schwimmen.
Sus piernas tienen unas especies de 
cerdas, deben ser para nadar mejor.
Sus piernas están cubiertas por una especie 
de cerdas, deben ser para nadar mejor.
Il tire parti de l’eau grâce à ses jambes,
telles des nageoires.
E as pernas têm algo parecido com 
cerdas, que deixam mais fácil nadar.